./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd --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 32bit --witnessprinter.graph.data.programhash aa3033c827040052fc2b3f2ac84da9b892249c5596676af10298d2e88bf55166 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:49:40,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:49:40,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:49:40,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:49:40,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:49:40,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:49:40,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:49:40,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:49:40,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:49:40,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:49:40,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:49:40,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:49:40,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:49:40,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:49:40,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:49:40,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:49:40,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:49:40,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:49:40,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:49:40,336 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:49:40,337 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:49:40,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:49:40,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:49:40,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:49:40,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:49:40,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:49:40,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa3033c827040052fc2b3f2ac84da9b892249c5596676af10298d2e88bf55166 [2024-11-13 14:49:40,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:49:40,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:49:40,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:49:40,640 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:49:40,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:49:40,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound50.c Unable to find full path for "g++" [2024-11-13 14:49:42,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:49:42,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:49:42,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound50.c [2024-11-13 14:49:42,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/data/41d2fd4b2/70f0ec57614343beac34c8d4a56de839/FLAGadcc40053 [2024-11-13 14:49:42,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/data/41d2fd4b2/70f0ec57614343beac34c8d4a56de839 [2024-11-13 14:49:42,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:49:42,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:49:42,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:49:42,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:49:42,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:49:42,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:49:42" (1/1) ... [2024-11-13 14:49:42,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d205005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:42, skipping insertion in model container [2024-11-13 14:49:42,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:49:42" (1/1) ... [2024-11-13 14:49:43,002 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:49:43,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:49:43,209 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:49:43,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:49:43,242 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:49:43,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43 WrapperNode [2024-11-13 14:49:43,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:49:43,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:49:43,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:49:43,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:49:43,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,283 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2024-11-13 14:49:43,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:49:43,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:49:43,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:49:43,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:49:43,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,308 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:49:43,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:49:43,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:49:43,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:49:43,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:49:43,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (1/1) ... [2024-11-13 14:49:43,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:49:43,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:49:43,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:49:43,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:49:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:49:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:49:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:49:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:49:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:49:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:49:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:49:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:49:43,473 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:49:43,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:49:44,290 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-13 14:49:44,290 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:49:44,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:49:44,317 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:49:44,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:49:44 BoogieIcfgContainer [2024-11-13 14:49:44,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:49:44,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:49:44,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:49:44,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:49:44,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:49:42" (1/3) ... [2024-11-13 14:49:44,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44843b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:49:44, skipping insertion in model container [2024-11-13 14:49:44,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:49:43" (2/3) ... [2024-11-13 14:49:44,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44843b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:49:44, skipping insertion in model container [2024-11-13 14:49:44,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:49:44" (3/3) ... [2024-11-13 14:49:44,329 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound50.c [2024-11-13 14:49:44,351 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:49:44,353 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_valuebound50.c that has 3 procedures, 228 locations, 1 initial locations, 1 loop locations, and 102 error locations. [2024-11-13 14:49:44,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:49:44,453 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@644fed97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:49:44,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-11-13 14:49:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 118 states have (on average 1.9067796610169492) internal successors, (225), 220 states have internal predecessors, (225), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:49:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 14:49:44,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:44,470 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:44,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash 4799040, now seen corresponding path program 1 times [2024-11-13 14:49:44,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:44,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197217058] [2024-11-13 14:49:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:44,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197217058] [2024-11-13 14:49:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197217058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:44,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:49:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139102895] [2024-11-13 14:49:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:44,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:49:44,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:44,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:49:44,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:49:44,713 INFO L87 Difference]: Start difference. First operand has 228 states, 118 states have (on average 1.9067796610169492) internal successors, (225), 220 states have internal predecessors, (225), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 14:49:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:44,751 INFO L93 Difference]: Finished difference Result 427 states and 470 transitions. [2024-11-13 14:49:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:49:44,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-13 14:49:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:44,760 INFO L225 Difference]: With dead ends: 427 [2024-11-13 14:49:44,761 INFO L226 Difference]: Without dead ends: 196 [2024-11-13 14:49:44,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:49:44,767 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:44,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:49:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-13 14:49:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-13 14:49:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 113 states have (on average 1.6814159292035398) internal successors, (190), 189 states have internal predecessors, (190), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:49:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 198 transitions. [2024-11-13 14:49:44,827 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 198 transitions. Word has length 15 [2024-11-13 14:49:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:44,827 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 198 transitions. [2024-11-13 14:49:44,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 14:49:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 198 transitions. [2024-11-13 14:49:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 14:49:44,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:44,829 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:44,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:49:44,830 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:44,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash 763118079, now seen corresponding path program 1 times [2024-11-13 14:49:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:44,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946221665] [2024-11-13 14:49:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:44,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:44,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946221665] [2024-11-13 14:49:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946221665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:49:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776874164] [2024-11-13 14:49:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:44,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:49:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:44,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:49:44,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:44,932 INFO L87 Difference]: Start difference. First operand 196 states and 198 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:45,552 INFO L93 Difference]: Finished difference Result 357 states and 365 transitions. [2024-11-13 14:49:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:49:45,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-13 14:49:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:45,555 INFO L225 Difference]: With dead ends: 357 [2024-11-13 14:49:45,555 INFO L226 Difference]: Without dead ends: 293 [2024-11-13 14:49:45,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:45,556 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 98 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:45,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 139 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:49:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-13 14:49:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 287. [2024-11-13 14:49:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 203 states have (on average 1.4285714285714286) internal successors, (290), 279 states have internal predecessors, (290), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:49:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 300 transitions. [2024-11-13 14:49:45,574 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 300 transitions. Word has length 15 [2024-11-13 14:49:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:45,576 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 300 transitions. [2024-11-13 14:49:45,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 300 transitions. [2024-11-13 14:49:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 14:49:45,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:45,577 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:45,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:49:45,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:45,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash 59959941, now seen corresponding path program 1 times [2024-11-13 14:49:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:45,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34274180] [2024-11-13 14:49:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:45,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:45,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:45,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:45,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34274180] [2024-11-13 14:49:45,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34274180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:45,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:45,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:49:45,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554211383] [2024-11-13 14:49:45,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:45,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:49:45,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:45,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:49:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:45,768 INFO L87 Difference]: Start difference. First operand 287 states and 300 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:45,862 INFO L93 Difference]: Finished difference Result 311 states and 318 transitions. [2024-11-13 14:49:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:49:45,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2024-11-13 14:49:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:45,864 INFO L225 Difference]: With dead ends: 311 [2024-11-13 14:49:45,865 INFO L226 Difference]: Without dead ends: 304 [2024-11-13 14:49:45,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:45,866 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 68 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:45,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 361 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:49:45,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-13 14:49:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 286. [2024-11-13 14:49:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 202 states have (on average 1.400990099009901) internal successors, (283), 278 states have internal predecessors, (283), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:49:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 293 transitions. [2024-11-13 14:49:45,882 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 293 transitions. Word has length 53 [2024-11-13 14:49:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:45,882 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 293 transitions. [2024-11-13 14:49:45,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 293 transitions. [2024-11-13 14:49:45,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:49:45,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:45,884 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:45,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:49:45,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:45,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:45,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1786932391, now seen corresponding path program 1 times [2024-11-13 14:49:45,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:45,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963764346] [2024-11-13 14:49:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:45,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:46,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:46,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963764346] [2024-11-13 14:49:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963764346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:46,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:46,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:49:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631390928] [2024-11-13 14:49:46,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:46,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:49:46,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:46,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:49:46,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:46,173 INFO L87 Difference]: Start difference. First operand 286 states and 293 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:46,458 INFO L93 Difference]: Finished difference Result 306 states and 311 transitions. [2024-11-13 14:49:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:49:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 55 [2024-11-13 14:49:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:46,460 INFO L225 Difference]: With dead ends: 306 [2024-11-13 14:49:46,460 INFO L226 Difference]: Without dead ends: 263 [2024-11-13 14:49:46,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:46,462 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 151 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:46,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 286 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:49:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-13 14:49:46,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 245. [2024-11-13 14:49:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 161 states have (on average 1.4906832298136645) internal successors, (240), 237 states have internal predecessors, (240), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:49:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 250 transitions. [2024-11-13 14:49:46,475 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 250 transitions. Word has length 55 [2024-11-13 14:49:46,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:46,475 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 250 transitions. [2024-11-13 14:49:46,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:49:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 250 transitions. [2024-11-13 14:49:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 14:49:46,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:46,477 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:46,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:49:46,477 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:46,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 355206648, now seen corresponding path program 1 times [2024-11-13 14:49:46,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:46,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653529595] [2024-11-13 14:49:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:46,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:49:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:46,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:46,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653529595] [2024-11-13 14:49:46,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653529595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:46,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:46,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:49:46,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356227971] [2024-11-13 14:49:46,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:46,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:49:46,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:46,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:49:46,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:46,626 INFO L87 Difference]: Start difference. First operand 245 states and 250 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:46,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:46,658 INFO L93 Difference]: Finished difference Result 247 states and 250 transitions. [2024-11-13 14:49:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:49:46,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-11-13 14:49:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:46,662 INFO L225 Difference]: With dead ends: 247 [2024-11-13 14:49:46,662 INFO L226 Difference]: Without dead ends: 245 [2024-11-13 14:49:46,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:49:46,664 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:46,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:49:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-13 14:49:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-13 14:49:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 161 states have (on average 1.4782608695652173) internal successors, (238), 237 states have internal predecessors, (238), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:49:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 248 transitions. [2024-11-13 14:49:46,683 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 248 transitions. Word has length 63 [2024-11-13 14:49:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:46,684 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 248 transitions. [2024-11-13 14:49:46,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 248 transitions. [2024-11-13 14:49:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:49:46,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:46,686 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:46,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:49:46,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:46,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2106383317, now seen corresponding path program 1 times [2024-11-13 14:49:46,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:46,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927557901] [2024-11-13 14:49:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:49:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629834195] [2024-11-13 14:49:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:46,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:46,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:49:46,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:49:46,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:49:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:49:46,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:49:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:47,021 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:49:47,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:47,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927557901] [2024-11-13 14:49:47,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:49:47,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629834195] [2024-11-13 14:49:47,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629834195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:47,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:47,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:49:47,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900496446] [2024-11-13 14:49:47,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:47,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:49:47,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:47,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:49:47,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:47,025 INFO L87 Difference]: Start difference. First operand 245 states and 248 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:47,652 INFO L93 Difference]: Finished difference Result 420 states and 433 transitions. [2024-11-13 14:49:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:49:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2024-11-13 14:49:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:47,654 INFO L225 Difference]: With dead ends: 420 [2024-11-13 14:49:47,655 INFO L226 Difference]: Without dead ends: 355 [2024-11-13 14:49:47,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:47,656 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:47,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 162 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:49:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-13 14:49:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 349. [2024-11-13 14:49:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 339 states have internal predecessors, (354), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:49:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 368 transitions. [2024-11-13 14:49:47,671 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 368 transitions. Word has length 68 [2024-11-13 14:49:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:47,671 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 368 transitions. [2024-11-13 14:49:47,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 368 transitions. [2024-11-13 14:49:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 14:49:47,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:47,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:47,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:49:47,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:47,878 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:47,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash -474023740, now seen corresponding path program 1 times [2024-11-13 14:49:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:47,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197628963] [2024-11-13 14:49:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:49:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:48,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197628963] [2024-11-13 14:49:48,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197628963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:48,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:48,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:49:48,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406383150] [2024-11-13 14:49:48,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:48,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:49:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:49:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:48,038 INFO L87 Difference]: Start difference. First operand 349 states and 368 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:48,164 INFO L93 Difference]: Finished difference Result 350 states and 368 transitions. [2024-11-13 14:49:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:49:48,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2024-11-13 14:49:48,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:48,167 INFO L225 Difference]: With dead ends: 350 [2024-11-13 14:49:48,167 INFO L226 Difference]: Without dead ends: 349 [2024-11-13 14:49:48,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:48,168 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 55 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:48,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 319 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:49:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-13 14:49:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-13 14:49:48,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.3422053231939164) internal successors, (353), 339 states have internal predecessors, (353), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:49:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 367 transitions. [2024-11-13 14:49:48,185 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 367 transitions. Word has length 75 [2024-11-13 14:49:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:48,186 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 367 transitions. [2024-11-13 14:49:48,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 367 transitions. [2024-11-13 14:49:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 14:49:48,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:48,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:48,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:49:48,189 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:48,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1809833891, now seen corresponding path program 1 times [2024-11-13 14:49:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20391932] [2024-11-13 14:49:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:49:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:49:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:49:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:48,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20391932] [2024-11-13 14:49:48,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20391932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:49:48,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:49:48,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:49:48,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728609123] [2024-11-13 14:49:48,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:49:48,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:49:48,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:48,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:49:48,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:48,350 INFO L87 Difference]: Start difference. First operand 349 states and 367 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:48,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:48,832 INFO L93 Difference]: Finished difference Result 350 states and 367 transitions. [2024-11-13 14:49:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:49:48,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2024-11-13 14:49:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:48,834 INFO L225 Difference]: With dead ends: 350 [2024-11-13 14:49:48,835 INFO L226 Difference]: Without dead ends: 349 [2024-11-13 14:49:48,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:49:48,836 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 47 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:48,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 350 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:49:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-13 14:49:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-13 14:49:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.338403041825095) internal successors, (352), 339 states have internal predecessors, (352), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:49:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 366 transitions. [2024-11-13 14:49:48,849 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 366 transitions. Word has length 76 [2024-11-13 14:49:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:48,849 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 366 transitions. [2024-11-13 14:49:48,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:49:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 366 transitions. [2024-11-13 14:49:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 14:49:48,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:48,851 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:48,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:49:48,852 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:48,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1664862981, now seen corresponding path program 1 times [2024-11-13 14:49:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493221710] [2024-11-13 14:49:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:49:48,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496670710] [2024-11-13 14:49:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:48,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:48,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:49:48,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:49:48,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:49:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:48,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:49:48,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:49:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:49,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:49:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493221710] [2024-11-13 14:49:49,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:49:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496670710] [2024-11-13 14:49:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496670710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:49:49,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:49:49,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-13 14:49:49,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526048609] [2024-11-13 14:49:49,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:49:49,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:49:49,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:49,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:49:49,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:49:49,864 INFO L87 Difference]: Start difference. First operand 349 states and 366 transitions. Second operand has 8 states, 7 states have (on average 29.428571428571427) internal successors, (206), 8 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:49:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:51,609 INFO L93 Difference]: Finished difference Result 373 states and 384 transitions. [2024-11-13 14:49:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:49:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.428571428571427) internal successors, (206), 8 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 116 [2024-11-13 14:49:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:51,611 INFO L225 Difference]: With dead ends: 373 [2024-11-13 14:49:51,611 INFO L226 Difference]: Without dead ends: 364 [2024-11-13 14:49:51,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:49:51,612 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 342 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:51,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 201 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:49:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-13 14:49:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 353. [2024-11-13 14:49:51,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 270 states have (on average 1.3074074074074074) internal successors, (353), 343 states have internal predecessors, (353), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:49:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 367 transitions. [2024-11-13 14:49:51,626 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 367 transitions. Word has length 116 [2024-11-13 14:49:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:51,626 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 367 transitions. [2024-11-13 14:49:51,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.428571428571427) internal successors, (206), 8 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:49:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 367 transitions. [2024-11-13 14:49:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 14:49:51,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:51,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:51,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:49:51,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:51,829 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:49:51,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2089472729, now seen corresponding path program 1 times [2024-11-13 14:49:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676815013] [2024-11-13 14:49:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:49:51,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615156366] [2024-11-13 14:49:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:49:51,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:49:51,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:49:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:51,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:49:51,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:49:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:52,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:49:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:49:54,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:54,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676815013] [2024-11-13 14:49:54,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:49:54,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615156366] [2024-11-13 14:49:54,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615156366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:49:54,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:49:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-13 14:49:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529035020] [2024-11-13 14:49:54,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:49:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:49:54,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:49:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:49:54,437 INFO L87 Difference]: Start difference. First operand 353 states and 367 transitions. Second operand has 9 states, 8 states have (on average 26.25) internal successors, (210), 9 states have internal predecessors, (210), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:50:09,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:14,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:22,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:26,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:31,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:38,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:42,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:43,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:45,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:50:55,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:00,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:02,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:09,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:16,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:19,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:26,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:30,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:37,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:41,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:43,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:50,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:51:58,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:06,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:08,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:13,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:17,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:18,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:22,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:26,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:42,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 14.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:46,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:50,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:52:54,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:08,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 14.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:12,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:19,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:24,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:32,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:47,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:49,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:51,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:04,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:09,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:15,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:20,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:26,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:28,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:29,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:35,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:39,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:44,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:51,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:53,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:54:57,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:02,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:02,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:02,608 INFO L93 Difference]: Finished difference Result 364 states and 372 transitions. [2024-11-13 14:55:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:55:02,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 26.25) internal successors, (210), 9 states have internal predecessors, (210), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 118 [2024-11-13 14:55:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:02,611 INFO L225 Difference]: With dead ends: 364 [2024-11-13 14:55:02,611 INFO L226 Difference]: Without dead ends: 362 [2024-11-13 14:55:02,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=90, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:55:02,612 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 232 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 110 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 307.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 307.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:02,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 117 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 829 Invalid, 39 Unknown, 0 Unchecked, 307.9s Time] [2024-11-13 14:55:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-13 14:55:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 351. [2024-11-13 14:55:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 270 states have (on average 1.2925925925925925) internal successors, (349), 341 states have internal predecessors, (349), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:55:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 363 transitions. [2024-11-13 14:55:02,626 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 363 transitions. Word has length 118 [2024-11-13 14:55:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:02,626 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 363 transitions. [2024-11-13 14:55:02,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 26.25) internal successors, (210), 9 states have internal predecessors, (210), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:55:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 363 transitions. [2024-11-13 14:55:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 14:55:02,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:02,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:02,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:55:02,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:55:02,837 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:02,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1852422536, now seen corresponding path program 1 times [2024-11-13 14:55:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:02,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643282910] [2024-11-13 14:55:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:55:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:55:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:55:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 14:55:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:03,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:03,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643282910] [2024-11-13 14:55:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643282910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:03,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784955665] [2024-11-13 14:55:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:03,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:03,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:03,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:03,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:55:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:55:03,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:03,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784955665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:03,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:03,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 14:55:03,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038624236] [2024-11-13 14:55:03,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:03,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:55:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:03,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:55:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:55:03,289 INFO L87 Difference]: Start difference. First operand 351 states and 363 transitions. Second operand has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:55:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:03,320 INFO L93 Difference]: Finished difference Result 351 states and 363 transitions. [2024-11-13 14:55:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:55:03,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 126 [2024-11-13 14:55:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:03,322 INFO L225 Difference]: With dead ends: 351 [2024-11-13 14:55:03,322 INFO L226 Difference]: Without dead ends: 350 [2024-11-13 14:55:03,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:55:03,323 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 39 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:03,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 459 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:55:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-13 14:55:03,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2024-11-13 14:55:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 270 states have (on average 1.2851851851851852) internal successors, (347), 340 states have internal predecessors, (347), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:55:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 361 transitions. [2024-11-13 14:55:03,337 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 361 transitions. Word has length 126 [2024-11-13 14:55:03,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:03,338 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 361 transitions. [2024-11-13 14:55:03,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:55:03,339 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 361 transitions. [2024-11-13 14:55:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:55:03,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:03,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:03,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:55:03,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:03,541 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:03,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1590523631, now seen corresponding path program 1 times [2024-11-13 14:55:03,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:03,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728151913] [2024-11-13 14:55:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:03,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:55:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:55:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:55:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 14:55:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:03,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:03,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728151913] [2024-11-13 14:55:03,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728151913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:03,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873841089] [2024-11-13 14:55:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:03,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:03,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:03,712 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:55:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:03,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:55:03,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:03,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:04,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873841089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:04,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:04,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 14:55:04,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3021719] [2024-11-13 14:55:04,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:04,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:55:04,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:04,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:55:04,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:55:04,142 INFO L87 Difference]: Start difference. First operand 350 states and 361 transitions. Second operand has 7 states, 6 states have (on average 44.166666666666664) internal successors, (265), 7 states have internal predecessors, (265), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 14:55:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:04,202 INFO L93 Difference]: Finished difference Result 532 states and 545 transitions. [2024-11-13 14:55:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:55:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 44.166666666666664) internal successors, (265), 7 states have internal predecessors, (265), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 127 [2024-11-13 14:55:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:04,206 INFO L225 Difference]: With dead ends: 532 [2024-11-13 14:55:04,206 INFO L226 Difference]: Without dead ends: 531 [2024-11-13 14:55:04,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:55:04,207 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 118 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:04,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 836 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:55:04,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-13 14:55:04,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 459. [2024-11-13 14:55:04,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 377 states have (on average 1.389920424403183) internal successors, (524), 447 states have internal predecessors, (524), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:55:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 542 transitions. [2024-11-13 14:55:04,229 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 542 transitions. Word has length 127 [2024-11-13 14:55:04,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:04,230 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 542 transitions. [2024-11-13 14:55:04,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 44.166666666666664) internal successors, (265), 7 states have internal predecessors, (265), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 14:55:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 542 transitions. [2024-11-13 14:55:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:04,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:04,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:04,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:55:04,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 14:55:04,433 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:04,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1140255573, now seen corresponding path program 1 times [2024-11-13 14:55:04,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:04,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751183380] [2024-11-13 14:55:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:55:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284350457] [2024-11-13 14:55:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:04,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:04,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:04,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:04,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:55:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:04,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:55:04,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:04,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:05,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751183380] [2024-11-13 14:55:05,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:55:05,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284350457] [2024-11-13 14:55:05,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284350457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:05,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:55:05,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-13 14:55:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468362077] [2024-11-13 14:55:05,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:05,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:55:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:55:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:55:05,077 INFO L87 Difference]: Start difference. First operand 459 states and 542 transitions. Second operand has 8 states, 7 states have (on average 32.285714285714285) internal successors, (226), 8 states have internal predecessors, (226), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:55:06,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:06,033 INFO L93 Difference]: Finished difference Result 551 states and 621 transitions. [2024-11-13 14:55:06,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:55:06,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 32.285714285714285) internal successors, (226), 8 states have internal predecessors, (226), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 131 [2024-11-13 14:55:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:06,036 INFO L225 Difference]: With dead ends: 551 [2024-11-13 14:55:06,036 INFO L226 Difference]: Without dead ends: 486 [2024-11-13 14:55:06,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:55:06,037 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 465 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:06,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 155 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:55:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-13 14:55:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 473. [2024-11-13 14:55:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 410 states have (on average 1.2121951219512195) internal successors, (497), 462 states have internal predecessors, (497), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:55:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 513 transitions. [2024-11-13 14:55:06,064 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 513 transitions. Word has length 131 [2024-11-13 14:55:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:06,066 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 513 transitions. [2024-11-13 14:55:06,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 32.285714285714285) internal successors, (226), 8 states have internal predecessors, (226), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:55:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 513 transitions. [2024-11-13 14:55:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 14:55:06,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:06,068 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:06,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:55:06,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 14:55:06,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:06,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:06,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1967304669, now seen corresponding path program 1 times [2024-11-13 14:55:06,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:06,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929192281] [2024-11-13 14:55:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:06,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:55:06,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215454772] [2024-11-13 14:55:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:06,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:06,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:06,300 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:06,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:55:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:06,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:55:06,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:06,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:07,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:07,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929192281] [2024-11-13 14:55:07,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:55:07,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215454772] [2024-11-13 14:55:07,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215454772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:07,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:55:07,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-13 14:55:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218696235] [2024-11-13 14:55:07,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:07,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:55:07,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:55:07,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:55:07,981 INFO L87 Difference]: Start difference. First operand 473 states and 513 transitions. Second operand has 11 states, 10 states have (on average 24.2) internal successors, (242), 11 states have internal predecessors, (242), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:55:13,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:19,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:23,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:26,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:55:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:29,826 INFO L93 Difference]: Finished difference Result 478 states and 518 transitions. [2024-11-13 14:55:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:55:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.2) internal successors, (242), 11 states have internal predecessors, (242), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 139 [2024-11-13 14:55:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:29,829 INFO L225 Difference]: With dead ends: 478 [2024-11-13 14:55:29,829 INFO L226 Difference]: Without dead ends: 477 [2024-11-13 14:55:29,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:55:29,830 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 303 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:29,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 144 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1063 Invalid, 3 Unknown, 0 Unchecked, 21.7s Time] [2024-11-13 14:55:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-13 14:55:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 472. [2024-11-13 14:55:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 410 states have (on average 1.2048780487804878) internal successors, (494), 461 states have internal predecessors, (494), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:55:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 510 transitions. [2024-11-13 14:55:29,857 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 510 transitions. Word has length 139 [2024-11-13 14:55:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:29,859 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 510 transitions. [2024-11-13 14:55:29,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.2) internal successors, (242), 11 states have internal predecessors, (242), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:55:29,859 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 510 transitions. [2024-11-13 14:55:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-13 14:55:29,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:29,861 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:29,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:30,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 14:55:30,062 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:30,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1386091008, now seen corresponding path program 1 times [2024-11-13 14:55:30,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:30,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669284610] [2024-11-13 14:55:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:30,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:55:30,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658788316] [2024-11-13 14:55:30,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:30,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:30,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:30,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:30,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:55:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:30,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:55:30,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:55:30,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:31,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:31,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669284610] [2024-11-13 14:55:31,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:55:31,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658788316] [2024-11-13 14:55:31,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658788316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:31,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:31,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-13 14:55:31,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220836391] [2024-11-13 14:55:31,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:31,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:55:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:55:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:55:31,117 INFO L87 Difference]: Start difference. First operand 472 states and 510 transitions. Second operand has 5 states, 4 states have (on average 38.5) internal successors, (154), 5 states have internal predecessors, (154), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:55:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:31,529 INFO L93 Difference]: Finished difference Result 472 states and 510 transitions. [2024-11-13 14:55:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:55:31,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 38.5) internal successors, (154), 5 states have internal predecessors, (154), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 173 [2024-11-13 14:55:31,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:31,532 INFO L225 Difference]: With dead ends: 472 [2024-11-13 14:55:31,532 INFO L226 Difference]: Without dead ends: 459 [2024-11-13 14:55:31,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:55:31,533 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:31,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:55:31,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-13 14:55:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-11-13 14:55:31,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 410 states have (on average 1.1560975609756097) internal successors, (474), 448 states have internal predecessors, (474), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:55:31,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 490 transitions. [2024-11-13 14:55:31,562 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 490 transitions. Word has length 173 [2024-11-13 14:55:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:31,562 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 490 transitions. [2024-11-13 14:55:31,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 38.5) internal successors, (154), 5 states have internal predecessors, (154), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:55:31,563 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 490 transitions. [2024-11-13 14:55:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-13 14:55:31,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:31,565 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:31,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 14:55:31,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:55:31,769 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:31,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 19148541, now seen corresponding path program 1 times [2024-11-13 14:55:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:31,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678812820] [2024-11-13 14:55:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:55:31,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551377429] [2024-11-13 14:55:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:31,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:31,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:55:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:31,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:55:31,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:55:32,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:33,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:33,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678812820] [2024-11-13 14:55:33,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:55:33,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551377429] [2024-11-13 14:55:33,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551377429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:33,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:33,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 14:55:33,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348626969] [2024-11-13 14:55:33,288 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:33,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:55:33,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:33,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:55:33,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:55:33,290 INFO L87 Difference]: Start difference. First operand 459 states and 490 transitions. Second operand has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:55:33,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:33,768 INFO L93 Difference]: Finished difference Result 463 states and 494 transitions. [2024-11-13 14:55:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:55:33,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 174 [2024-11-13 14:55:33,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:33,770 INFO L225 Difference]: With dead ends: 463 [2024-11-13 14:55:33,770 INFO L226 Difference]: Without dead ends: 417 [2024-11-13 14:55:33,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:55:33,771 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:33,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 134 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:55:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-13 14:55:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-13 14:55:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.171195652173913) internal successors, (431), 406 states have internal predecessors, (431), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:55:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 447 transitions. [2024-11-13 14:55:33,792 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 447 transitions. Word has length 174 [2024-11-13 14:55:33,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:33,792 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 447 transitions. [2024-11-13 14:55:33,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:55:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 447 transitions. [2024-11-13 14:55:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-13 14:55:33,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:33,794 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:33,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:34,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 14:55:34,005 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:55:34,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:34,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1935509866, now seen corresponding path program 1 times [2024-11-13 14:55:34,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:34,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190488910] [2024-11-13 14:55:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:34,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:55:34,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146187336] [2024-11-13 14:55:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:34,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:34,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:34,035 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:34,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:55:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:34,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:55:34,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:34,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:55:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190488910] [2024-11-13 14:55:35,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:55:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146187336] [2024-11-13 14:55:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146187336] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:35,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:55:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 14:55:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701130096] [2024-11-13 14:55:35,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:35,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:55:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:55:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:55:35,122 INFO L87 Difference]: Start difference. First operand 417 states and 447 transitions. Second operand has 12 states, 11 states have (on average 29.454545454545453) internal successors, (324), 12 states have internal predecessors, (324), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:55:51,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 15.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:56:06,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 14.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:56:21,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 15.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:56:23,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:23,646 INFO L93 Difference]: Finished difference Result 543 states and 593 transitions. [2024-11-13 14:56:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:56:23,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 29.454545454545453) internal successors, (324), 12 states have internal predecessors, (324), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 180 [2024-11-13 14:56:23,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:23,649 INFO L225 Difference]: With dead ends: 543 [2024-11-13 14:56:23,649 INFO L226 Difference]: Without dead ends: 537 [2024-11-13 14:56:23,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:56:23,651 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 546 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 25 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:23,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 222 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1533 Invalid, 3 Unknown, 0 Unchecked, 48.4s Time] [2024-11-13 14:56:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-13 14:56:23,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 467. [2024-11-13 14:56:23,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 421 states have (on average 1.171021377672209) internal successors, (493), 456 states have internal predecessors, (493), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 509 transitions. [2024-11-13 14:56:23,674 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 509 transitions. Word has length 180 [2024-11-13 14:56:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:23,674 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 509 transitions. [2024-11-13 14:56:23,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 29.454545454545453) internal successors, (324), 12 states have internal predecessors, (324), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:56:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 509 transitions. [2024-11-13 14:56:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-13 14:56:23,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:23,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:23,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:23,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:56:23,888 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:23,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -275116519, now seen corresponding path program 1 times [2024-11-13 14:56:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:23,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830230137] [2024-11-13 14:56:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:23,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804493185] [2024-11-13 14:56:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:23,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:23,927 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:23,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:56:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:24,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:56:24,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:56:24,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:56:24,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:24,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830230137] [2024-11-13 14:56:24,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:24,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804493185] [2024-11-13 14:56:24,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804493185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:56:24,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:24,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 14:56:24,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114363553] [2024-11-13 14:56:24,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:24,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:56:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:56:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:56:24,881 INFO L87 Difference]: Start difference. First operand 467 states and 509 transitions. Second operand has 10 states, 9 states have (on average 38.888888888888886) internal successors, (350), 10 states have internal predecessors, (350), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 14:56:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:26,012 INFO L93 Difference]: Finished difference Result 538 states and 579 transitions. [2024-11-13 14:56:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:56:26,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 38.888888888888886) internal successors, (350), 10 states have internal predecessors, (350), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 198 [2024-11-13 14:56:26,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:26,015 INFO L225 Difference]: With dead ends: 538 [2024-11-13 14:56:26,015 INFO L226 Difference]: Without dead ends: 506 [2024-11-13 14:56:26,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:56:26,016 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 433 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:26,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 240 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:56:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-13 14:56:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 453. [2024-11-13 14:56:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 421 states have (on average 1.0807600950118765) internal successors, (455), 442 states have internal predecessors, (455), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 471 transitions. [2024-11-13 14:56:26,042 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 471 transitions. Word has length 198 [2024-11-13 14:56:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:26,042 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 471 transitions. [2024-11-13 14:56:26,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 38.888888888888886) internal successors, (350), 10 states have internal predecessors, (350), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 14:56:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 471 transitions. [2024-11-13 14:56:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-13 14:56:26,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:26,050 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:26,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 14:56:26,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:56:26,251 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:26,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1812389501, now seen corresponding path program 2 times [2024-11-13 14:56:26,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002783983] [2024-11-13 14:56:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:26,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983826048] [2024-11-13 14:56:26,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:56:26,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:26,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:26,288 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:26,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:56:26,354 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:56:26,354 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:56:26,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:56:26,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-13 14:56:27,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:27,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002783983] [2024-11-13 14:56:27,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:27,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983826048] [2024-11-13 14:56:27,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983826048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:27,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:27,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:56:27,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329585722] [2024-11-13 14:56:27,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:27,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:56:27,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:56:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:56:27,349 INFO L87 Difference]: Start difference. First operand 453 states and 471 transitions. Second operand has 5 states, 4 states have (on average 34.75) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:56:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:27,602 INFO L93 Difference]: Finished difference Result 453 states and 471 transitions. [2024-11-13 14:56:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:56:27,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.75) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 237 [2024-11-13 14:56:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:27,605 INFO L225 Difference]: With dead ends: 453 [2024-11-13 14:56:27,606 INFO L226 Difference]: Without dead ends: 402 [2024-11-13 14:56:27,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:56:27,608 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 84 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:27,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 49 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:56:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-13 14:56:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2024-11-13 14:56:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 377 states have (on average 1.063660477453581) internal successors, (401), 392 states have internal predecessors, (401), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:56:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 415 transitions. [2024-11-13 14:56:27,628 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 415 transitions. Word has length 237 [2024-11-13 14:56:27,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:27,628 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 415 transitions. [2024-11-13 14:56:27,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.75) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:56:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 415 transitions. [2024-11-13 14:56:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-13 14:56:27,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:27,634 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:27,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:27,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:27,835 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:27,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash 950881979, now seen corresponding path program 1 times [2024-11-13 14:56:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:27,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429500703] [2024-11-13 14:56:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:27,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437766785] [2024-11-13 14:56:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:27,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:27,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:27,884 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:27,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:56:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:27,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:56:27,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 348 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:56:28,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:28,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:28,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429500703] [2024-11-13 14:56:28,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:28,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437766785] [2024-11-13 14:56:28,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437766785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:28,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:56:28,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 14:56:28,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637391262] [2024-11-13 14:56:28,379 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:28,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:56:28,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:28,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:56:28,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:56:28,381 INFO L87 Difference]: Start difference. First operand 402 states and 415 transitions. Second operand has 7 states, 6 states have (on average 39.833333333333336) internal successors, (239), 7 states have internal predecessors, (239), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:56:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:28,898 INFO L93 Difference]: Finished difference Result 453 states and 468 transitions. [2024-11-13 14:56:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:56:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 39.833333333333336) internal successors, (239), 7 states have internal predecessors, (239), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 263 [2024-11-13 14:56:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:28,901 INFO L225 Difference]: With dead ends: 453 [2024-11-13 14:56:28,901 INFO L226 Difference]: Without dead ends: 448 [2024-11-13 14:56:28,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:56:28,902 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 88 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:28,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 120 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:56:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-13 14:56:28,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 428. [2024-11-13 14:56:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 402 states have (on average 1.0572139303482586) internal successors, (425), 417 states have internal predecessors, (425), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 441 transitions. [2024-11-13 14:56:28,924 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 441 transitions. Word has length 263 [2024-11-13 14:56:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:28,925 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 441 transitions. [2024-11-13 14:56:28,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 39.833333333333336) internal successors, (239), 7 states have internal predecessors, (239), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:56:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 441 transitions. [2024-11-13 14:56:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-13 14:56:28,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:28,927 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:28,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:29,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:29,128 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:29,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2132629403, now seen corresponding path program 1 times [2024-11-13 14:56:29,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:29,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68602869] [2024-11-13 14:56:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:29,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:29,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008247042] [2024-11-13 14:56:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:29,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:29,173 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:29,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:56:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:29,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:56:29,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:56:29,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:56:30,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:30,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68602869] [2024-11-13 14:56:30,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:30,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008247042] [2024-11-13 14:56:30,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008247042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:56:30,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 14:56:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064151673] [2024-11-13 14:56:30,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:56:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:30,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:56:30,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:56:30,433 INFO L87 Difference]: Start difference. First operand 428 states and 441 transitions. Second operand has 12 states, 11 states have (on average 44.54545454545455) internal successors, (490), 12 states have internal predecessors, (490), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:56:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:31,392 INFO L93 Difference]: Finished difference Result 464 states and 472 transitions. [2024-11-13 14:56:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:56:31,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 44.54545454545455) internal successors, (490), 12 states have internal predecessors, (490), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 273 [2024-11-13 14:56:31,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:31,395 INFO L225 Difference]: With dead ends: 464 [2024-11-13 14:56:31,395 INFO L226 Difference]: Without dead ends: 418 [2024-11-13 14:56:31,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:56:31,395 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 553 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:31,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 271 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:56:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-13 14:56:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 405. [2024-11-13 14:56:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 380 states have (on average 1.0394736842105263) internal successors, (395), 394 states have internal predecessors, (395), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 411 transitions. [2024-11-13 14:56:31,417 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 411 transitions. Word has length 273 [2024-11-13 14:56:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:31,418 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 411 transitions. [2024-11-13 14:56:31,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 44.54545454545455) internal successors, (490), 12 states have internal predecessors, (490), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:56:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 411 transitions. [2024-11-13 14:56:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-13 14:56:31,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:31,420 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:31,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:56:31,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 14:56:31,621 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:31,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash 119593361, now seen corresponding path program 2 times [2024-11-13 14:56:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:31,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786190566] [2024-11-13 14:56:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:56:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:56:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:56:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 14:56:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-13 14:56:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-13 14:56:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-11-13 14:56:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-13 14:56:31,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:31,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786190566] [2024-11-13 14:56:31,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786190566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:31,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107685790] [2024-11-13 14:56:31,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:56:31,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:31,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:31,866 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:31,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:56:31,927 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:56:31,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:56:31,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:56:31,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-13 14:56:32,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-13 14:56:32,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107685790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:56:32,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:56:32,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 14:56:32,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669998577] [2024-11-13 14:56:32,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:32,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:56:32,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:32,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:56:32,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:56:32,735 INFO L87 Difference]: Start difference. First operand 405 states and 411 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:56:32,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:32,786 INFO L93 Difference]: Finished difference Result 405 states and 411 transitions. [2024-11-13 14:56:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:56:32,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 316 [2024-11-13 14:56:32,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:32,789 INFO L225 Difference]: With dead ends: 405 [2024-11-13 14:56:32,789 INFO L226 Difference]: Without dead ends: 404 [2024-11-13 14:56:32,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:56:32,791 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 208 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:32,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 301 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:56:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-13 14:56:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-11-13 14:56:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 380 states have (on average 1.0368421052631578) internal successors, (394), 393 states have internal predecessors, (394), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 410 transitions. [2024-11-13 14:56:32,811 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 410 transitions. Word has length 316 [2024-11-13 14:56:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:32,812 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 410 transitions. [2024-11-13 14:56:32,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:56:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 410 transitions. [2024-11-13 14:56:32,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-13 14:56:32,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:32,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:32,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 14:56:33,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 14:56:33,015 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:33,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:33,015 INFO L85 PathProgramCache]: Analyzing trace with hash 507711291, now seen corresponding path program 2 times [2024-11-13 14:56:33,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:33,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193424269] [2024-11-13 14:56:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:33,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:33,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101350856] [2024-11-13 14:56:33,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:56:33,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:33,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:33,064 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:33,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:56:33,138 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:56:33,138 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:56:33,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:56:33,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-11-13 14:56:33,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:33,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:33,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193424269] [2024-11-13 14:56:33,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:33,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101350856] [2024-11-13 14:56:33,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101350856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:33,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:33,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:56:33,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631926666] [2024-11-13 14:56:33,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:33,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:56:33,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:33,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:56:33,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:56:33,280 INFO L87 Difference]: Start difference. First operand 404 states and 410 transitions. Second operand has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:56:33,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:33,525 INFO L93 Difference]: Finished difference Result 404 states and 410 transitions. [2024-11-13 14:56:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:56:33,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 326 [2024-11-13 14:56:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:33,527 INFO L225 Difference]: With dead ends: 404 [2024-11-13 14:56:33,527 INFO L226 Difference]: Without dead ends: 399 [2024-11-13 14:56:33,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:56:33,528 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 74 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:33,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 48 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:56:33,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-13 14:56:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2024-11-13 14:56:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 380 states have (on average 1.0236842105263158) internal successors, (389), 388 states have internal predecessors, (389), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:56:33,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 405 transitions. [2024-11-13 14:56:33,551 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 405 transitions. Word has length 326 [2024-11-13 14:56:33,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:33,551 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 405 transitions. [2024-11-13 14:56:33,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:56:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 405 transitions. [2024-11-13 14:56:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-13 14:56:33,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:33,556 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:33,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:56:33,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:33,757 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:33,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash -13333207, now seen corresponding path program 1 times [2024-11-13 14:56:33,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:33,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915183125] [2024-11-13 14:56:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:33,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:33,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967259194] [2024-11-13 14:56:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:33,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:33,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:33,805 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:33,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:56:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:33,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:56:33,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 14:56:34,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 14:56:35,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915183125] [2024-11-13 14:56:35,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:56:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967259194] [2024-11-13 14:56:35,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967259194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:56:35,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:35,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-13 14:56:35,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636547678] [2024-11-13 14:56:35,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:35,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:56:35,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:56:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:56:35,700 INFO L87 Difference]: Start difference. First operand 399 states and 405 transitions. Second operand has 14 states, 13 states have (on average 47.23076923076923) internal successors, (614), 14 states have internal predecessors, (614), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:56:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:38,481 INFO L93 Difference]: Finished difference Result 923 states and 975 transitions. [2024-11-13 14:56:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:56:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 47.23076923076923) internal successors, (614), 14 states have internal predecessors, (614), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 340 [2024-11-13 14:56:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:38,484 INFO L225 Difference]: With dead ends: 923 [2024-11-13 14:56:38,484 INFO L226 Difference]: Without dead ends: 693 [2024-11-13 14:56:38,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:56:38,485 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 1151 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 2559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:38,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 458 Invalid, 2559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2510 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:56:38,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-13 14:56:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 688. [2024-11-13 14:56:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 671 states have (on average 1.0104321907600595) internal successors, (678), 672 states have internal predecessors, (678), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 14:56:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 704 transitions. [2024-11-13 14:56:38,531 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 704 transitions. Word has length 340 [2024-11-13 14:56:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:38,532 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 704 transitions. [2024-11-13 14:56:38,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 47.23076923076923) internal successors, (614), 14 states have internal predecessors, (614), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:56:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 704 transitions. [2024-11-13 14:56:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-13 14:56:38,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:38,535 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:38,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:38,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 14:56:38,739 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:56:38,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:38,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1530563050, now seen corresponding path program 2 times [2024-11-13 14:56:38,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:38,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119496149] [2024-11-13 14:56:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:38,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:56:38,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057744345] [2024-11-13 14:56:38,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:56:38,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:38,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:38,790 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:38,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 14:56:38,924 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:56:38,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:56:38,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:56:38,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 12 proven. 795 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 14:56:39,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:20,616 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 14:57:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 12 proven. 795 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 14:57:48,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:48,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119496149] [2024-11-13 14:57:48,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:57:48,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057744345] [2024-11-13 14:57:48,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057744345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:57:48,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:57:48,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-11-13 14:57:48,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506518196] [2024-11-13 14:57:48,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:57:48,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:57:48,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:57:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:57:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=364, Unknown=3, NotChecked=0, Total=462 [2024-11-13 14:57:48,461 INFO L87 Difference]: Start difference. First operand 688 states and 704 transitions. Second operand has 22 states, 20 states have (on average 33.85) internal successors, (677), 22 states have internal predecessors, (677), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:58:02,894 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 87 DAG size of output: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:58:05,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:58:09,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:58:27,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:58:32,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:32,757 INFO L93 Difference]: Finished difference Result 706 states and 722 transitions. [2024-11-13 14:58:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 14:58:32,758 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 33.85) internal successors, (677), 22 states have internal predecessors, (677), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 369 [2024-11-13 14:58:32,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:32,761 INFO L225 Difference]: With dead ends: 706 [2024-11-13 14:58:32,761 INFO L226 Difference]: Without dead ends: 705 [2024-11-13 14:58:32,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 716 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 64.4s TimeCoverageRelationStatistics Valid=511, Invalid=1648, Unknown=3, NotChecked=0, Total=2162 [2024-11-13 14:58:32,762 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 466 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 3920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:32,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 552 Invalid, 3920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2024-11-13 14:58:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-13 14:58:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-13 14:58:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 688 states have (on average 1.002906976744186) internal successors, (690), 689 states have internal predecessors, (690), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 14:58:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 716 transitions. [2024-11-13 14:58:32,820 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 716 transitions. Word has length 369 [2024-11-13 14:58:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:32,820 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 716 transitions. [2024-11-13 14:58:32,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 33.85) internal successors, (677), 22 states have internal predecessors, (677), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:58:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 716 transitions. [2024-11-13 14:58:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-13 14:58:32,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:32,826 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:32,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-13 14:58:33,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:58:33,031 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:58:33,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2130376203, now seen corresponding path program 1 times [2024-11-13 14:58:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:58:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252751836] [2024-11-13 14:58:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:58:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:58:33,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506664195] [2024-11-13 14:58:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:33,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:58:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:58:33,165 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:58:33,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 14:58:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:33,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:58:33,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 0 proven. 3509 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:58:34,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 0 proven. 3509 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:58:37,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:58:37,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252751836] [2024-11-13 14:58:37,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:58:37,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506664195] [2024-11-13 14:58:37,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506664195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:58:37,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:58:37,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-13 14:58:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761021443] [2024-11-13 14:58:37,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:58:37,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 14:58:37,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:58:37,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 14:58:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:58:37,584 INFO L87 Difference]: Start difference. First operand 705 states and 716 transitions. Second operand has 26 states, 25 states have (on average 53.36) internal successors, (1334), 26 states have internal predecessors, (1334), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-13 14:58:52,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:52,622 INFO L93 Difference]: Finished difference Result 1468 states and 1504 transitions. [2024-11-13 14:58:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 14:58:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 53.36) internal successors, (1334), 26 states have internal predecessors, (1334), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 730 [2024-11-13 14:58:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:52,628 INFO L225 Difference]: With dead ends: 1468 [2024-11-13 14:58:52,628 INFO L226 Difference]: Without dead ends: 1467 [2024-11-13 14:58:52,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1469 GetRequests, 1434 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 14:58:52,629 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 401 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 8158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:52,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1338 Invalid, 8171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 8158 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 14:58:52,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-11-13 14:58:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1455. [2024-11-13 14:58:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1425 states have (on average 1.0098245614035088) internal successors, (1439), 1426 states have internal predecessors, (1439), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 14:58:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1491 transitions. [2024-11-13 14:58:52,751 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1491 transitions. Word has length 730 [2024-11-13 14:58:52,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:52,752 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1491 transitions. [2024-11-13 14:58:52,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 53.36) internal successors, (1334), 26 states have internal predecessors, (1334), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-13 14:58:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1491 transitions. [2024-11-13 14:58:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2024-11-13 14:58:52,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:52,759 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:52,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 14:58:52,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:58:52,959 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 14:58:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 546522646, now seen corresponding path program 3 times [2024-11-13 14:58:52,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:58:52,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404510849] [2024-11-13 14:58:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:52,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:58:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:58:53,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573018283] [2024-11-13 14:58:53,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:58:53,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:58:53,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:58:53,099 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:58:53,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 14:58:53,272 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 14:58:53,273 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:58:53,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:58:53,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 724 proven. 7 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2024-11-13 15:02:05,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 3289 trivial. 0 not checked. [2024-11-13 15:02:26,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:02:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404510849] [2024-11-13 15:02:26,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:02:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573018283] [2024-11-13 15:02:26,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573018283] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:02:26,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:02:26,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-13 15:02:26,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108998788] [2024-11-13 15:02:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:26,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:02:26,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:02:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:02:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=135, Unknown=5, NotChecked=0, Total=182 [2024-11-13 15:02:26,337 INFO L87 Difference]: Start difference. First operand 1455 states and 1491 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:02:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:31,334 INFO L93 Difference]: Finished difference Result 1455 states and 1491 transitions. [2024-11-13 15:02:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:02:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 747 [2024-11-13 15:02:31,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:31,339 INFO L225 Difference]: With dead ends: 1455 [2024-11-13 15:02:31,339 INFO L226 Difference]: Without dead ends: 1454 [2024-11-13 15:02:31,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1495 GetRequests, 1480 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=64, Invalid=202, Unknown=6, NotChecked=0, Total=272 [2024-11-13 15:02:31,340 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 157 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:31,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 95 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:02:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-11-13 15:02:31,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2024-11-13 15:02:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1425 states have (on average 1.0007017543859649) internal successors, (1426), 1425 states have internal predecessors, (1426), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 15:02:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1478 transitions. [2024-11-13 15:02:31,449 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1478 transitions. Word has length 747 [2024-11-13 15:02:31,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:31,450 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1478 transitions. [2024-11-13 15:02:31,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:02:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1478 transitions. [2024-11-13 15:02:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1550 [2024-11-13 15:02:31,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:31,466 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:31,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 15:02:31,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:02:31,667 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-13 15:02:31,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash 427170165, now seen corresponding path program 2 times [2024-11-13 15:02:31,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:02:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882034646] [2024-11-13 15:02:31,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:31,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:02:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:02:31,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662619582] [2024-11-13 15:02:31,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:02:31,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:02:31,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:02:31,943 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:02:31,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43325ab9-507f-429c-80d0-a0e34006e0fb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 15:02:32,381 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:02:32,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:02:32,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-13 15:02:32,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 17968 backedges. 0 proven. 16860 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-13 15:02:34,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 17968 backedges. 0 proven. 16860 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-13 15:02:44,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:02:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882034646] [2024-11-13 15:02:44,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:02:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662619582] [2024-11-13 15:02:44,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662619582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:02:44,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:02:44,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2024-11-13 15:02:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568095224] [2024-11-13 15:02:44,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:02:44,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-13 15:02:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:02:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-13 15:02:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 15:02:44,033 INFO L87 Difference]: Start difference. First operand 1454 states and 1478 transitions. Second operand has 52 states, 51 states have (on average 55.72549019607843) internal successors, (2842), 52 states have internal predecessors, (2842), 49 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-13 15:03:11,043 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 296 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)