./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:52:23,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:52:23,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:52:23,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:52:23,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:52:23,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:52:23,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:52:23,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:52:23,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:52:23,174 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:52:23,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:52:23,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:52:23,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:52:23,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:52:23,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:52:23,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:52:23,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:52:23,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:52:23,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:52:23,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:52:23,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:52:23,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:52:23,182 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:52:23,183 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:52:23,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:52:23,184 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:52:23,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:52:23,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:52:23,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:52:23,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:52:23,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:23,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:52:23,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:52:23,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:52:23,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:52:23,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:52:23,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:52:23,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:52:23,199 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:52:23,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:52:23,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:52:23,203 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_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a [2023-11-26 11:52:23,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:52:23,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:52:23,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:52:23,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:52:23,647 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:52:23,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2023-11-26 11:52:26,796 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:52:27,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:52:27,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2023-11-26 11:52:27,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/data/5ffec69b7/78da1810fd4241448c6f2c62d26fa0ad/FLAG921a6150f [2023-11-26 11:52:27,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/data/5ffec69b7/78da1810fd4241448c6f2c62d26fa0ad [2023-11-26 11:52:27,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:52:27,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:52:27,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:27,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:52:27,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:52:27,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2292e043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27, skipping insertion in model container [2023-11-26 11:52:27,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,166 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:52:27,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:27,402 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:52:27,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:27,448 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:52:27,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27 WrapperNode [2023-11-26 11:52:27,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:27,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:27,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:52:27,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:52:27,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,492 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-11-26 11:52:27,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:27,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:52:27,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:52:27,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:52:27,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,527 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 11:52:27,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:52:27,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:52:27,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:52:27,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:52:27,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:27,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:27,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:52:27,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:52:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:52:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:52:27,731 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:52:27,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:27,938 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:27,965 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:27,965 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:52:27,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:27 BoogieIcfgContainer [2023-11-26 11:52:27,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:27,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:52:27,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:52:27,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:52:27,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:52:27" (1/3) ... [2023-11-26 11:52:27,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af56c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:27, skipping insertion in model container [2023-11-26 11:52:27,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (2/3) ... [2023-11-26 11:52:28,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af56c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:28, skipping insertion in model container [2023-11-26 11:52:28,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:27" (3/3) ... [2023-11-26 11:52:28,002 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2023-11-26 11:52:28,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:52:28,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-26 11:52:28,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:52:28,085 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24447284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:52:28,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-26 11:52:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 28 states have internal predecessors, (35), 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) [2023-11-26 11:52:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:52:28,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:28,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:52:28,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash 94531, now seen corresponding path program 1 times [2023-11-26 11:52:28,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:28,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524567822] [2023-11-26 11:52:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:28,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:28,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524567822] [2023-11-26 11:52:28,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524567822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:28,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:28,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:28,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259582037] [2023-11-26 11:52:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:28,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,414 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-26 11:52:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:28,477 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-26 11:52:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:28,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-26 11:52:28,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:28,493 INFO L225 Difference]: With dead ends: 31 [2023-11-26 11:52:28,493 INFO L226 Difference]: Without dead ends: 26 [2023-11-26 11:52:28,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,502 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:28,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:28,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-26 11:52:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-26 11:52:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 25 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) [2023-11-26 11:52:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-11-26 11:52:28,540 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 3 [2023-11-26 11:52:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:28,541 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-11-26 11:52:28,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-26 11:52:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-26 11:52:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:52:28,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:28,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:52:28,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:52:28,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:28,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:28,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2930506, now seen corresponding path program 1 times [2023-11-26 11:52:28,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:28,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158524949] [2023-11-26 11:52:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:28,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:28,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:28,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158524949] [2023-11-26 11:52:28,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158524949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:28,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:28,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246338785] [2023-11-26 11:52:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:28,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:28,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,621 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 11:52:28,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:28,661 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2023-11-26 11:52:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:28,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-26 11:52:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:28,664 INFO L225 Difference]: With dead ends: 30 [2023-11-26 11:52:28,665 INFO L226 Difference]: Without dead ends: 29 [2023-11-26 11:52:28,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,667 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:28,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-26 11:52:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-26 11:52:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 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) [2023-11-26 11:52:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-26 11:52:28,674 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 4 [2023-11-26 11:52:28,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:28,674 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-26 11:52:28,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 11:52:28,675 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-26 11:52:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:52:28,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:28,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:28,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:52:28,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:28,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1403406088, now seen corresponding path program 1 times [2023-11-26 11:52:28,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:28,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634254345] [2023-11-26 11:52:28,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:28,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:28,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634254345] [2023-11-26 11:52:28,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634254345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:28,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:28,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:28,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478708643] [2023-11-26 11:52:28,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:28,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:28,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:28,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:28,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,779 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:28,834 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2023-11-26 11:52:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:28,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 11:52:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:28,836 INFO L225 Difference]: With dead ends: 52 [2023-11-26 11:52:28,836 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 11:52:28,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,839 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 21 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:28,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 11:52:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2023-11-26 11:52:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 43 states have internal predecessors, (60), 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) [2023-11-26 11:52:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2023-11-26 11:52:28,849 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 7 [2023-11-26 11:52:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:28,850 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2023-11-26 11:52:28,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:28,850 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2023-11-26 11:52:28,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:52:28,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:28,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:28,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:52:28,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:28,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash 555915823, now seen corresponding path program 1 times [2023-11-26 11:52:28,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:28,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414013406] [2023-11-26 11:52:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414013406] [2023-11-26 11:52:28,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414013406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:28,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235606326] [2023-11-26 11:52:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:28,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,899 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:28,930 INFO L93 Difference]: Finished difference Result 82 states and 116 transitions. [2023-11-26 11:52:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:28,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-26 11:52:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:28,932 INFO L225 Difference]: With dead ends: 82 [2023-11-26 11:52:28,932 INFO L226 Difference]: Without dead ends: 80 [2023-11-26 11:52:28,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:28,935 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:28,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-26 11:52:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2023-11-26 11:52:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 74 states have internal predecessors, (113), 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) [2023-11-26 11:52:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 113 transitions. [2023-11-26 11:52:28,948 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 113 transitions. Word has length 8 [2023-11-26 11:52:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:28,949 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 113 transitions. [2023-11-26 11:52:28,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 113 transitions. [2023-11-26 11:52:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:52:28,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:28,950 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-26 11:52:28,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:52:28,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:28,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:28,952 INFO L85 PathProgramCache]: Analyzing trace with hash 557067742, now seen corresponding path program 1 times [2023-11-26 11:52:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:28,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278750141] [2023-11-26 11:52:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:29,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278750141] [2023-11-26 11:52:29,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278750141] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:29,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094033653] [2023-11-26 11:52:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:29,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:29,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:29,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:29,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:52:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:29,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094033653] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:29,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:29,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:29,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017775740] [2023-11-26 11:52:29,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:29,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:29,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:29,138 INFO L87 Difference]: Start difference. First operand 75 states and 113 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2023-11-26 11:52:29,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:29,190 INFO L93 Difference]: Finished difference Result 230 states and 341 transitions. [2023-11-26 11:52:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 8 [2023-11-26 11:52:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:29,194 INFO L225 Difference]: With dead ends: 230 [2023-11-26 11:52:29,194 INFO L226 Difference]: Without dead ends: 229 [2023-11-26 11:52:29,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:29,196 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:29,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 131 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-26 11:52:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 209. [2023-11-26 11:52:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 200 states have (on average 1.65) internal successors, (330), 208 states have internal predecessors, (330), 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) [2023-11-26 11:52:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 330 transitions. [2023-11-26 11:52:29,224 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 330 transitions. Word has length 8 [2023-11-26 11:52:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:29,224 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 330 transitions. [2023-11-26 11:52:29,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2023-11-26 11:52:29,225 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-11-26 11:52:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 11:52:29,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:29,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:29,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:29,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:29,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:29,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash 53713073, now seen corresponding path program 1 times [2023-11-26 11:52:29,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:29,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973592584] [2023-11-26 11:52:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:29,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973592584] [2023-11-26 11:52:29,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973592584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:29,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:29,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009157521] [2023-11-26 11:52:29,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:29,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:29,515 INFO L87 Difference]: Start difference. First operand 209 states and 330 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:52:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:29,552 INFO L93 Difference]: Finished difference Result 353 states and 554 transitions. [2023-11-26 11:52:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:29,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2023-11-26 11:52:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:29,556 INFO L225 Difference]: With dead ends: 353 [2023-11-26 11:52:29,556 INFO L226 Difference]: Without dead ends: 351 [2023-11-26 11:52:29,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:29,558 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:29,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:29,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-26 11:52:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 338. [2023-11-26 11:52:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 329 states have (on average 1.5623100303951367) internal successors, (514), 337 states have internal predecessors, (514), 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) [2023-11-26 11:52:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 514 transitions. [2023-11-26 11:52:29,614 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 514 transitions. Word has length 9 [2023-11-26 11:52:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:29,614 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 514 transitions. [2023-11-26 11:52:29,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:52:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 514 transitions. [2023-11-26 11:52:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 11:52:29,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:29,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:29,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:52:29,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:29,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:29,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1665105336, now seen corresponding path program 1 times [2023-11-26 11:52:29,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:29,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526879735] [2023-11-26 11:52:29,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:29,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:29,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526879735] [2023-11-26 11:52:29,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526879735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:29,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:29,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:52:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733733005] [2023-11-26 11:52:29,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:29,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:29,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:29,663 INFO L87 Difference]: Start difference. First operand 338 states and 514 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-26 11:52:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:29,730 INFO L93 Difference]: Finished difference Result 564 states and 855 transitions. [2023-11-26 11:52:29,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2023-11-26 11:52:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:29,736 INFO L225 Difference]: With dead ends: 564 [2023-11-26 11:52:29,736 INFO L226 Difference]: Without dead ends: 562 [2023-11-26 11:52:29,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:29,739 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:29,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-11-26 11:52:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 557. [2023-11-26 11:52:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 548 states have (on average 1.5018248175182483) internal successors, (823), 556 states have internal predecessors, (823), 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) [2023-11-26 11:52:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 823 transitions. [2023-11-26 11:52:29,807 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 823 transitions. Word has length 10 [2023-11-26 11:52:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:29,807 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 823 transitions. [2023-11-26 11:52:29,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-26 11:52:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 823 transitions. [2023-11-26 11:52:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 11:52:29,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:29,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 11:52:29,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:52:29,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:29,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 12844193, now seen corresponding path program 1 times [2023-11-26 11:52:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:29,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249825627] [2023-11-26 11:52:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:29,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249825627] [2023-11-26 11:52:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249825627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392040668] [2023-11-26 11:52:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:29,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:29,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:29,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:52:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:29,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:29,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:29,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:30,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392040668] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:30,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:30,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:30,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262713341] [2023-11-26 11:52:30,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:30,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:30,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:30,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:30,022 INFO L87 Difference]: Start difference. First operand 557 states and 823 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2023-11-26 11:52:30,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:30,127 INFO L93 Difference]: Finished difference Result 1057 states and 1610 transitions. [2023-11-26 11:52:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 11:52:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:30,135 INFO L225 Difference]: With dead ends: 1057 [2023-11-26 11:52:30,135 INFO L226 Difference]: Without dead ends: 1055 [2023-11-26 11:52:30,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:30,138 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 138 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:30,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 112 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2023-11-26 11:52:30,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 915. [2023-11-26 11:52:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 906 states have (on average 1.520971302428256) internal successors, (1378), 914 states have internal predecessors, (1378), 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) [2023-11-26 11:52:30,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1378 transitions. [2023-11-26 11:52:30,201 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1378 transitions. Word has length 15 [2023-11-26 11:52:30,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:30,202 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1378 transitions. [2023-11-26 11:52:30,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2023-11-26 11:52:30,202 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1378 transitions. [2023-11-26 11:52:30,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 11:52:30,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:30,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:30,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:30,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:30,412 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:30,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:30,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1554772082, now seen corresponding path program 1 times [2023-11-26 11:52:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:30,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085080581] [2023-11-26 11:52:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:30,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:30,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:30,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085080581] [2023-11-26 11:52:30,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085080581] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:30,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92505944] [2023-11-26 11:52:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:30,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:30,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:52:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:30,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:30,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:30,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:30,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92505944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:30,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:30,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:30,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657293694] [2023-11-26 11:52:30,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:30,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:30,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:30,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:30,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:30,644 INFO L87 Difference]: Start difference. First operand 915 states and 1378 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2023-11-26 11:52:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:30,761 INFO L93 Difference]: Finished difference Result 1571 states and 2431 transitions. [2023-11-26 11:52:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 11:52:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:30,773 INFO L225 Difference]: With dead ends: 1571 [2023-11-26 11:52:30,773 INFO L226 Difference]: Without dead ends: 1569 [2023-11-26 11:52:30,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:30,778 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 133 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:30,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2023-11-26 11:52:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1076. [2023-11-26 11:52:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 1068 states have (on average 1.506554307116105) internal successors, (1609), 1075 states have internal predecessors, (1609), 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) [2023-11-26 11:52:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1609 transitions. [2023-11-26 11:52:30,840 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1609 transitions. Word has length 15 [2023-11-26 11:52:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:30,840 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1609 transitions. [2023-11-26 11:52:30,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2023-11-26 11:52:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1609 transitions. [2023-11-26 11:52:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 11:52:30,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:30,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 11:52:30,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:31,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:31,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:31,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:31,054 INFO L85 PathProgramCache]: Analyzing trace with hash 403837505, now seen corresponding path program 1 times [2023-11-26 11:52:31,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:31,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566672235] [2023-11-26 11:52:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:31,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:31,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566672235] [2023-11-26 11:52:31,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566672235] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:31,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742307604] [2023-11-26 11:52:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:31,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:31,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:31,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:31,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:52:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:31,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:31,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:31,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:31,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742307604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:31,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:31,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:31,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031457636] [2023-11-26 11:52:31,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:31,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:31,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:31,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:31,330 INFO L87 Difference]: Start difference. First operand 1076 states and 1609 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2023-11-26 11:52:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:31,478 INFO L93 Difference]: Finished difference Result 2448 states and 3821 transitions. [2023-11-26 11:52:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) Word has length 19 [2023-11-26 11:52:31,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:31,496 INFO L225 Difference]: With dead ends: 2448 [2023-11-26 11:52:31,496 INFO L226 Difference]: Without dead ends: 2446 [2023-11-26 11:52:31,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:31,500 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 81 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:31,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 107 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2023-11-26 11:52:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2127. [2023-11-26 11:52:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2119 states have (on average 1.5181689476168003) internal successors, (3217), 2126 states have internal predecessors, (3217), 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) [2023-11-26 11:52:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 3217 transitions. [2023-11-26 11:52:31,606 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 3217 transitions. Word has length 19 [2023-11-26 11:52:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:31,606 INFO L495 AbstractCegarLoop]: Abstraction has 2127 states and 3217 transitions. [2023-11-26 11:52:31,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2023-11-26 11:52:31,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 3217 transitions. [2023-11-26 11:52:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 11:52:31,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:31,608 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:31,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:31,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:31,814 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:31,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:31,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2042338236, now seen corresponding path program 1 times [2023-11-26 11:52:31,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:31,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863757230] [2023-11-26 11:52:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863757230] [2023-11-26 11:52:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863757230] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:31,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453826988] [2023-11-26 11:52:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:31,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:31,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:31,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:31,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:52:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:31,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:31,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:31,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:32,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453826988] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:32,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:32,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:32,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308138026] [2023-11-26 11:52:32,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:32,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:32,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:32,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:32,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:32,005 INFO L87 Difference]: Start difference. First operand 2127 states and 3217 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2023-11-26 11:52:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:32,160 INFO L93 Difference]: Finished difference Result 4025 states and 6271 transitions. [2023-11-26 11:52:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) Word has length 19 [2023-11-26 11:52:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:32,186 INFO L225 Difference]: With dead ends: 4025 [2023-11-26 11:52:32,186 INFO L226 Difference]: Without dead ends: 4023 [2023-11-26 11:52:32,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:32,191 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 95 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:32,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 84 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-11-26 11:52:32,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 2621. [2023-11-26 11:52:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2614 states have (on average 1.494644223412395) internal successors, (3907), 2620 states have internal predecessors, (3907), 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) [2023-11-26 11:52:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 3907 transitions. [2023-11-26 11:52:32,348 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 3907 transitions. Word has length 19 [2023-11-26 11:52:32,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:32,348 INFO L495 AbstractCegarLoop]: Abstraction has 2621 states and 3907 transitions. [2023-11-26 11:52:32,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2023-11-26 11:52:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 3907 transitions. [2023-11-26 11:52:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 11:52:32,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:32,350 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1] [2023-11-26 11:52:32,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:32,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:52:32,557 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:32,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1908282778, now seen corresponding path program 2 times [2023-11-26 11:52:32,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:32,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802471278] [2023-11-26 11:52:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:32,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:52:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:32,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802471278] [2023-11-26 11:52:32,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802471278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:32,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591602957] [2023-11-26 11:52:32,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:32,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:32,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:32,610 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:32,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:52:32,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:52:32,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:32,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:32,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:52:32,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:52:32,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591602957] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:32,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:32,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-26 11:52:32,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159620537] [2023-11-26 11:52:32,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:32,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:32,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:32,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:32,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:32,749 INFO L87 Difference]: Start difference. First operand 2621 states and 3907 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2023-11-26 11:52:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:32,844 INFO L93 Difference]: Finished difference Result 2621 states and 3907 transitions. [2023-11-26 11:52:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 20 [2023-11-26 11:52:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:32,859 INFO L225 Difference]: With dead ends: 2621 [2023-11-26 11:52:32,860 INFO L226 Difference]: Without dead ends: 2620 [2023-11-26 11:52:32,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:32,863 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 70 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:32,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 48 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:32,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2023-11-26 11:52:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2269. [2023-11-26 11:52:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2263 states have (on average 1.453822359699514) internal successors, (3290), 2268 states have internal predecessors, (3290), 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) [2023-11-26 11:52:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3290 transitions. [2023-11-26 11:52:32,976 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3290 transitions. Word has length 20 [2023-11-26 11:52:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:32,978 INFO L495 AbstractCegarLoop]: Abstraction has 2269 states and 3290 transitions. [2023-11-26 11:52:32,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2023-11-26 11:52:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3290 transitions. [2023-11-26 11:52:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 11:52:32,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:32,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2023-11-26 11:52:32,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:33,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:52:33,199 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:33,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:33,199 INFO L85 PathProgramCache]: Analyzing trace with hash 662930241, now seen corresponding path program 1 times [2023-11-26 11:52:33,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:33,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879026910] [2023-11-26 11:52:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:33,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:33,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:33,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879026910] [2023-11-26 11:52:33,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879026910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:33,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333953450] [2023-11-26 11:52:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:33,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:33,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:33,291 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:33,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:52:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:33,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:52:33,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:33,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:33,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333953450] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:33,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:33,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:52:33,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085349285] [2023-11-26 11:52:33,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:33,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:52:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:52:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:33,488 INFO L87 Difference]: Start difference. First operand 2269 states and 3290 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-26 11:52:33,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:33,817 INFO L93 Difference]: Finished difference Result 6564 states and 9599 transitions. [2023-11-26 11:52:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:52:33,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 24 [2023-11-26 11:52:33,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:33,869 INFO L225 Difference]: With dead ends: 6564 [2023-11-26 11:52:33,869 INFO L226 Difference]: Without dead ends: 6563 [2023-11-26 11:52:33,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:33,878 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 164 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:33,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 141 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:33,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2023-11-26 11:52:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 5369. [2023-11-26 11:52:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5369 states, 5363 states have (on average 1.4501212008204363) internal successors, (7777), 5368 states have internal predecessors, (7777), 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) [2023-11-26 11:52:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 7777 transitions. [2023-11-26 11:52:34,307 INFO L78 Accepts]: Start accepts. Automaton has 5369 states and 7777 transitions. Word has length 24 [2023-11-26 11:52:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:34,308 INFO L495 AbstractCegarLoop]: Abstraction has 5369 states and 7777 transitions. [2023-11-26 11:52:34,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-26 11:52:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5369 states and 7777 transitions. [2023-11-26 11:52:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:52:34,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:34,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2023-11-26 11:52:34,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:34,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:52:34,518 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:34,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2119992952, now seen corresponding path program 1 times [2023-11-26 11:52:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017099342] [2023-11-26 11:52:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:34,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:34,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017099342] [2023-11-26 11:52:34,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017099342] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:34,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580306235] [2023-11-26 11:52:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:34,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:34,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:34,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:34,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:52:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:34,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:52:34,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:34,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:34,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580306235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:34,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:34,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:52:34,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405380508] [2023-11-26 11:52:34,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:34,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:52:34,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:34,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:52:34,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:34,821 INFO L87 Difference]: Start difference. First operand 5369 states and 7777 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-11-26 11:52:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:35,455 INFO L93 Difference]: Finished difference Result 15528 states and 22703 transitions. [2023-11-26 11:52:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:52:35,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-26 11:52:35,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:35,547 INFO L225 Difference]: With dead ends: 15528 [2023-11-26 11:52:35,548 INFO L226 Difference]: Without dead ends: 15527 [2023-11-26 11:52:35,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:35,563 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 142 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:35,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 141 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:35,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15527 states. [2023-11-26 11:52:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15527 to 12717. [2023-11-26 11:52:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12717 states, 12711 states have (on average 1.4463063488317205) internal successors, (18384), 12716 states have internal predecessors, (18384), 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) [2023-11-26 11:52:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12717 states to 12717 states and 18384 transitions. [2023-11-26 11:52:36,323 INFO L78 Accepts]: Start accepts. Automaton has 12717 states and 18384 transitions. Word has length 30 [2023-11-26 11:52:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:36,323 INFO L495 AbstractCegarLoop]: Abstraction has 12717 states and 18384 transitions. [2023-11-26 11:52:36,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-11-26 11:52:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12717 states and 18384 transitions. [2023-11-26 11:52:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 11:52:36,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:36,326 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1] [2023-11-26 11:52:36,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:36,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:52:36,532 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:36,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1538687407, now seen corresponding path program 2 times [2023-11-26 11:52:36,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:36,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123425302] [2023-11-26 11:52:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:36,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:36,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:36,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123425302] [2023-11-26 11:52:36,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123425302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:36,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501660281] [2023-11-26 11:52:36,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:36,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:36,646 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:36,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:52:36,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:52:36,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:36,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:36,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:36,762 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:36,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:36,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501660281] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:36,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 11:52:36,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810165444] [2023-11-26 11:52:36,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:36,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:52:36,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:36,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:52:36,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:36,864 INFO L87 Difference]: Start difference. First operand 12717 states and 18384 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 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) [2023-11-26 11:52:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:38,245 INFO L93 Difference]: Finished difference Result 43374 states and 64063 transitions. [2023-11-26 11:52:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:52:38,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 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 36 [2023-11-26 11:52:38,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:38,441 INFO L225 Difference]: With dead ends: 43374 [2023-11-26 11:52:38,441 INFO L226 Difference]: Without dead ends: 43372 [2023-11-26 11:52:38,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:38,478 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 310 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:38,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 222 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43372 states. [2023-11-26 11:52:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43372 to 27313. [2023-11-26 11:52:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27313 states, 27307 states have (on average 1.4249826051928076) internal successors, (38912), 27312 states have internal predecessors, (38912), 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) [2023-11-26 11:52:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27313 states to 27313 states and 38912 transitions. [2023-11-26 11:52:40,271 INFO L78 Accepts]: Start accepts. Automaton has 27313 states and 38912 transitions. Word has length 36 [2023-11-26 11:52:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:40,272 INFO L495 AbstractCegarLoop]: Abstraction has 27313 states and 38912 transitions. [2023-11-26 11:52:40,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 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) [2023-11-26 11:52:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 27313 states and 38912 transitions. [2023-11-26 11:52:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-26 11:52:40,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:40,275 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2023-11-26 11:52:40,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:40,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 11:52:40,481 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:40,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:40,482 INFO L85 PathProgramCache]: Analyzing trace with hash -448443912, now seen corresponding path program 2 times [2023-11-26 11:52:40,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:40,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031081427] [2023-11-26 11:52:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:40,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:40,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031081427] [2023-11-26 11:52:40,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031081427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:40,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438077900] [2023-11-26 11:52:40,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:40,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:40,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:40,591 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:40,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:52:40,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:52:40,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:40,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:40,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:40,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:40,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438077900] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:40,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:40,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 11:52:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324581323] [2023-11-26 11:52:40,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:40,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:52:40,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:40,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:52:40,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:40,854 INFO L87 Difference]: Start difference. First operand 27313 states and 38912 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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) [2023-11-26 11:52:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:44,022 INFO L93 Difference]: Finished difference Result 93040 states and 135517 transitions. [2023-11-26 11:52:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:52:44,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 46 [2023-11-26 11:52:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:44,318 INFO L225 Difference]: With dead ends: 93040 [2023-11-26 11:52:44,318 INFO L226 Difference]: Without dead ends: 93038 [2023-11-26 11:52:44,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:44,345 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 253 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:44,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 222 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:44,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93038 states. [2023-11-26 11:52:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93038 to 58637. [2023-11-26 11:52:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58637 states, 58631 states have (on average 1.4046494175436202) internal successors, (82356), 58636 states have internal predecessors, (82356), 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) [2023-11-26 11:52:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58637 states to 58637 states and 82356 transitions. [2023-11-26 11:52:47,367 INFO L78 Accepts]: Start accepts. Automaton has 58637 states and 82356 transitions. Word has length 46 [2023-11-26 11:52:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:47,367 INFO L495 AbstractCegarLoop]: Abstraction has 58637 states and 82356 transitions. [2023-11-26 11:52:47,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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) [2023-11-26 11:52:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 58637 states and 82356 transitions. [2023-11-26 11:52:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:52:47,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:47,373 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2023-11-26 11:52:47,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:47,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:52:47,579 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:52:47,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2112708967, now seen corresponding path program 2 times [2023-11-26 11:52:47,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803407431] [2023-11-26 11:52:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:47,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803407431] [2023-11-26 11:52:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803407431] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086105544] [2023-11-26 11:52:48,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:48,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:48,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:48,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:48,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:52:48,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:52:48,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:48,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:52:48,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:48,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:48,409 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:48,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086105544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:48,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:48,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-26 11:52:48,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132795728] [2023-11-26 11:52:48,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:48,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 11:52:48,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:48,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:52:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:52:48,412 INFO L87 Difference]: Start difference. First operand 58637 states and 82356 transitions. Second operand has 16 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 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) [2023-11-26 11:52:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:54,206 INFO L93 Difference]: Finished difference Result 206447 states and 292608 transitions. [2023-11-26 11:52:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 11:52:54,207 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 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 56 [2023-11-26 11:52:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:54,898 INFO L225 Difference]: With dead ends: 206447 [2023-11-26 11:52:54,898 INFO L226 Difference]: Without dead ends: 206446 [2023-11-26 11:52:55,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:52:55,004 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 485 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:55,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 301 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206446 states. [2023-11-26 11:53:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206446 to 114947. [2023-11-26 11:53:00,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114947 states, 114941 states have (on average 1.395550760825119) internal successors, (160406), 114946 states have internal predecessors, (160406), 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) [2023-11-26 11:53:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114947 states to 114947 states and 160406 transitions. [2023-11-26 11:53:01,025 INFO L78 Accepts]: Start accepts. Automaton has 114947 states and 160406 transitions. Word has length 56 [2023-11-26 11:53:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 114947 states and 160406 transitions. [2023-11-26 11:53:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 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) [2023-11-26 11:53:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 114947 states and 160406 transitions. [2023-11-26 11:53:01,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 11:53:01,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:01,036 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2023-11-26 11:53:01,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:53:01,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:53:01,243 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-26 11:53:01,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1749308972, now seen corresponding path program 2 times [2023-11-26 11:53:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:01,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084620604] [2023-11-26 11:53:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:01,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084620604] [2023-11-26 11:53:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084620604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085544946] [2023-11-26 11:53:01,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:53:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:01,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:01,406 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:01,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e358d167-215f-4b7b-8c12-4138158f107f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:53:01,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:53:01,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:53:01,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:53:01,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:01,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:53:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:01,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085544946] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:53:01,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:53:01,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-26 11:53:01,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260026021] [2023-11-26 11:53:01,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:53:01,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 11:53:01,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:01,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:53:01,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:53:01,835 INFO L87 Difference]: Start difference. First operand 114947 states and 160406 transitions. Second operand has 16 states, 15 states have (on average 9.333333333333334) internal successors, (140), 15 states have internal predecessors, (140), 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) [2023-11-26 11:53:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:13,556 INFO L93 Difference]: Finished difference Result 404447 states and 569640 transitions. [2023-11-26 11:53:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 11:53:13,557 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.333333333333334) internal successors, (140), 15 states have internal predecessors, (140), 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 70 [2023-11-26 11:53:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:14,363 INFO L225 Difference]: With dead ends: 404447 [2023-11-26 11:53:14,363 INFO L226 Difference]: Without dead ends: 404446 [2023-11-26 11:53:14,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:53:14,425 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 355 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:14,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 301 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:53:14,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404446 states.