./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70ea356a4fda57b451264a060e40bb07db2fe648bea4e3256fcecf71a5a8e7b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:11:34,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:11:34,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 19:11:34,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:11:34,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:11:34,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:11:34,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:11:34,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:11:34,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:11:34,292 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:11:34,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:11:34,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:11:34,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:11:34,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:11:34,294 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:11:34,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:11:34,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:11:34,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:11:34,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:11:34,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:11:34,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:11:34,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:11:34,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:11:34,304 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:11:34,304 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:11:34,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:11:34,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:11:34,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:11:34,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:11:34,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:11:34,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:11:34,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:11:34,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:11:34,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:11:34,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:11:34,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:11:34,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:11:34,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:11:34,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:11:34,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:11:34,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:11:34,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ea356a4fda57b451264a060e40bb07db2fe648bea4e3256fcecf71a5a8e7b7 [2024-11-08 19:11:34,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:11:34,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:11:34,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:11:34,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:11:34,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:11:34,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c Unable to find full path for "g++" [2024-11-08 19:11:37,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:11:37,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:11:37,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c [2024-11-08 19:11:37,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/data/31e8869ba/d151db876ec349538ae12a9dc222aa8b/FLAG114ba4367 [2024-11-08 19:11:37,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/data/31e8869ba/d151db876ec349538ae12a9dc222aa8b [2024-11-08 19:11:37,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:11:37,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:11:37,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:11:37,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:11:37,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:11:37,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159c51d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37, skipping insertion in model container [2024-11-08 19:11:37,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:11:37,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:11:37,845 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:11:37,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:11:37,883 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:11:37,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37 WrapperNode [2024-11-08 19:11:37,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:11:37,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:11:37,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:11:37,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:11:37,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,926 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-11-08 19:11:37,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:11:37,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:11:37,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:11:37,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:11:37,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,950 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 19:11:37,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:11:37,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:11:37,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:11:37,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:11:37,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (1/1) ... [2024-11-08 19:11:37,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:11:37,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:38,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:11:38,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:11:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:11:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:11:38,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:11:38,177 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:11:38,353 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-08 19:11:38,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:11:38,378 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:11:38,379 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:11:38,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:11:38 BoogieIcfgContainer [2024-11-08 19:11:38,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:11:38,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:11:38,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:11:38,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:11:38,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:11:37" (1/3) ... [2024-11-08 19:11:38,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49da6f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:11:38, skipping insertion in model container [2024-11-08 19:11:38,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:37" (2/3) ... [2024-11-08 19:11:38,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49da6f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:11:38, skipping insertion in model container [2024-11-08 19:11:38,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:11:38" (3/3) ... [2024-11-08 19:11:38,397 INFO L112 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random1d.c [2024-11-08 19:11:38,421 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:11:38,421 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 19:11:38,519 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:11:38,531 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;@10006d18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:11:38,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 19:11:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:38,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 19:11:38,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:38,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:38,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:38,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968360, now seen corresponding path program 1 times [2024-11-08 19:11:38,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:38,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539977602] [2024-11-08 19:11:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:38,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:38,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:38,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539977602] [2024-11-08 19:11:38,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539977602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:38,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:38,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:11:38,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601707216] [2024-11-08 19:11:38,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:38,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:38,861 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:38,940 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-11-08 19:11:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-08 19:11:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:38,957 INFO L225 Difference]: With dead ends: 37 [2024-11-08 19:11:38,958 INFO L226 Difference]: Without dead ends: 29 [2024-11-08 19:11:38,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:38,966 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:38,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 36 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-08 19:11:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-08 19:11:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-08 19:11:39,003 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 7 [2024-11-08 19:11:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:39,004 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-08 19:11:39,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-08 19:11:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:11:39,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:39,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:39,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:11:39,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:39,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 119444363, now seen corresponding path program 1 times [2024-11-08 19:11:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:39,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029087620] [2024-11-08 19:11:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:39,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029087620] [2024-11-08 19:11:39,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029087620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:39,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:39,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:11:39,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780911817] [2024-11-08 19:11:39,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:39,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:39,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:39,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,087 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:39,140 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2024-11-08 19:11:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:39,142 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 19:11:39,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:39,143 INFO L225 Difference]: With dead ends: 45 [2024-11-08 19:11:39,143 INFO L226 Difference]: Without dead ends: 43 [2024-11-08 19:11:39,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,145 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:39,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-08 19:11:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-11-08 19:11:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-08 19:11:39,155 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 8 [2024-11-08 19:11:39,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:39,155 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-08 19:11:39,156 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2024-11-08 19:11:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 19:11:39,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:39,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:39,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:11:39,158 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:39,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:39,159 INFO L85 PathProgramCache]: Analyzing trace with hash -592191983, now seen corresponding path program 1 times [2024-11-08 19:11:39,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534651145] [2024-11-08 19:11:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:39,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534651145] [2024-11-08 19:11:39,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534651145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:39,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:39,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:11:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518741490] [2024-11-08 19:11:39,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:39,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,241 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:39,275 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2024-11-08 19:11:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:39,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 19:11:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:39,280 INFO L225 Difference]: With dead ends: 41 [2024-11-08 19:11:39,280 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 19:11:39,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,284 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:39,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 19:11:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 19:11:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.4) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2024-11-08 19:11:39,299 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 9 [2024-11-08 19:11:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:39,299 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2024-11-08 19:11:39,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2024-11-08 19:11:39,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 19:11:39,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:39,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:39,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:11:39,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:39,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1178082227, now seen corresponding path program 1 times [2024-11-08 19:11:39,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:39,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098362279] [2024-11-08 19:11:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:39,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098362279] [2024-11-08 19:11:39,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098362279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:11:39,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96682001] [2024-11-08 19:11:39,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:39,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:39,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:39,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,412 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:39,445 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2024-11-08 19:11:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:39,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-08 19:11:39,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:39,447 INFO L225 Difference]: With dead ends: 46 [2024-11-08 19:11:39,447 INFO L226 Difference]: Without dead ends: 45 [2024-11-08 19:11:39,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:39,449 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:39,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-08 19:11:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-08 19:11:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.35) internal successors, (54), 44 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2024-11-08 19:11:39,458 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 10 [2024-11-08 19:11:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:39,459 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2024-11-08 19:11:39,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2024-11-08 19:11:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 19:11:39,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:39,460 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:39,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:11:39,461 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:39,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash 902587930, now seen corresponding path program 1 times [2024-11-08 19:11:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393615179] [2024-11-08 19:11:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:39,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393615179] [2024-11-08 19:11:39,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393615179] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:39,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879095860] [2024-11-08 19:11:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:39,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:39,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:39,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:11:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:39,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:11:39,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:39,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879095860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:39,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:39,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-08 19:11:39,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252327429] [2024-11-08 19:11:39,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:39,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:11:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:39,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:11:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:39,928 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:40,012 INFO L93 Difference]: Finished difference Result 90 states and 119 transitions. [2024-11-08 19:11:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:11:40,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-08 19:11:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:40,016 INFO L225 Difference]: With dead ends: 90 [2024-11-08 19:11:40,016 INFO L226 Difference]: Without dead ends: 88 [2024-11-08 19:11:40,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:40,021 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:40,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 37 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-08 19:11:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 57. [2024-11-08 19:11:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 56 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2024-11-08 19:11:40,038 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 14 [2024-11-08 19:11:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:40,038 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2024-11-08 19:11:40,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2024-11-08 19:11:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:11:40,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:40,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:40,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:40,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:40,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:40,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash -517599393, now seen corresponding path program 1 times [2024-11-08 19:11:40,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:40,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733368406] [2024-11-08 19:11:40,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:40,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:40,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:40,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733368406] [2024-11-08 19:11:40,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733368406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:40,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171418987] [2024-11-08 19:11:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:40,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:40,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:11:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:40,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:11:40,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:40,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:40,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171418987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:40,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:40,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-08 19:11:40,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783557030] [2024-11-08 19:11:40,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:40,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:11:40,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:11:40,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:40,566 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:40,679 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2024-11-08 19:11:40,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:11:40,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 19:11:40,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:40,684 INFO L225 Difference]: With dead ends: 140 [2024-11-08 19:11:40,684 INFO L226 Difference]: Without dead ends: 138 [2024-11-08 19:11:40,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:40,686 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:40,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-08 19:11:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2024-11-08 19:11:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 112 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 141 transitions. [2024-11-08 19:11:40,713 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 141 transitions. Word has length 15 [2024-11-08 19:11:40,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:40,713 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 141 transitions. [2024-11-08 19:11:40,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 141 transitions. [2024-11-08 19:11:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 19:11:40,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:40,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 19:11:40,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:11:40,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:40,920 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:40,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash 803191585, now seen corresponding path program 1 times [2024-11-08 19:11:40,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:40,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656933313] [2024-11-08 19:11:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:40,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656933313] [2024-11-08 19:11:41,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656933313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325234493] [2024-11-08 19:11:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:41,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:41,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:41,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:41,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:11:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:41,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:11:41,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325234493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:41,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-08 19:11:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864200639] [2024-11-08 19:11:41,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:41,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:11:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:11:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:41,212 INFO L87 Difference]: Start difference. First operand 113 states and 141 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:41,285 INFO L93 Difference]: Finished difference Result 239 states and 299 transitions. [2024-11-08 19:11:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:11:41,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-08 19:11:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:41,290 INFO L225 Difference]: With dead ends: 239 [2024-11-08 19:11:41,290 INFO L226 Difference]: Without dead ends: 238 [2024-11-08 19:11:41,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:11:41,292 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:41,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 57 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-08 19:11:41,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2024-11-08 19:11:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 232 states have (on average 1.2025862068965518) internal successors, (279), 235 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 279 transitions. [2024-11-08 19:11:41,345 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 279 transitions. Word has length 17 [2024-11-08 19:11:41,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:41,346 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 279 transitions. [2024-11-08 19:11:41,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 279 transitions. [2024-11-08 19:11:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 19:11:41,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:41,347 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 19:11:41,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:41,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:41,548 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:41,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1266097704, now seen corresponding path program 1 times [2024-11-08 19:11:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:41,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061071400] [2024-11-08 19:11:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:41,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:41,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061071400] [2024-11-08 19:11:41,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061071400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:41,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615882882] [2024-11-08 19:11:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:41,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:41,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:41,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:41,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:11:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:41,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:11:41,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615882882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:41,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-08 19:11:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244984375] [2024-11-08 19:11:41,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:41,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:11:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:11:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:41,932 INFO L87 Difference]: Start difference. First operand 236 states and 279 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:42,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:42,046 INFO L93 Difference]: Finished difference Result 461 states and 575 transitions. [2024-11-08 19:11:42,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:11:42,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-08 19:11:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:42,049 INFO L225 Difference]: With dead ends: 461 [2024-11-08 19:11:42,050 INFO L226 Difference]: Without dead ends: 460 [2024-11-08 19:11:42,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:42,051 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:42,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-08 19:11:42,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 387. [2024-11-08 19:11:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 383 states have (on average 1.2323759791122715) internal successors, (472), 386 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 472 transitions. [2024-11-08 19:11:42,102 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 472 transitions. Word has length 21 [2024-11-08 19:11:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:42,103 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 472 transitions. [2024-11-08 19:11:42,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 472 transitions. [2024-11-08 19:11:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 19:11:42,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:42,107 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-08 19:11:42,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:42,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:42,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:42,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:42,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2006025867, now seen corresponding path program 2 times [2024-11-08 19:11:42,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:42,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398143029] [2024-11-08 19:11:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:42,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:42,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:42,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398143029] [2024-11-08 19:11:42,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398143029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:42,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341392184] [2024-11-08 19:11:42,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:11:42,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:42,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:42,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:11:42,509 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:11:42,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:42,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:11:42,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:42,608 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:42,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:42,803 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:42,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341392184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:42,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:42,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-08 19:11:42,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544904326] [2024-11-08 19:11:42,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:42,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:42,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:42,810 INFO L87 Difference]: Start difference. First operand 387 states and 472 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:43,051 INFO L93 Difference]: Finished difference Result 1002 states and 1319 transitions. [2024-11-08 19:11:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:11:43,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-08 19:11:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:43,059 INFO L225 Difference]: With dead ends: 1002 [2024-11-08 19:11:43,059 INFO L226 Difference]: Without dead ends: 1000 [2024-11-08 19:11:43,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:43,062 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 69 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:43,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 93 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-11-08 19:11:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 660. [2024-11-08 19:11:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 656 states have (on average 1.2469512195121952) internal successors, (818), 659 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 818 transitions. [2024-11-08 19:11:43,147 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 818 transitions. Word has length 36 [2024-11-08 19:11:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:43,148 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 818 transitions. [2024-11-08 19:11:43,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 818 transitions. [2024-11-08 19:11:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 19:11:43,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:43,151 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-11-08 19:11:43,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:11:43,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 19:11:43,353 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:43,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:43,353 INFO L85 PathProgramCache]: Analyzing trace with hash -649455795, now seen corresponding path program 2 times [2024-11-08 19:11:43,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:43,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266659294] [2024-11-08 19:11:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:43,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:43,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266659294] [2024-11-08 19:11:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266659294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:43,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163665289] [2024-11-08 19:11:43,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:11:43,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:43,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:43,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:43,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:11:43,569 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:11:43,569 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:43,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:11:43,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:43,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:43,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163665289] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:43,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:43,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-08 19:11:43,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425945061] [2024-11-08 19:11:43,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:43,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:43,846 INFO L87 Difference]: Start difference. First operand 660 states and 818 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:44,047 INFO L93 Difference]: Finished difference Result 1914 states and 2404 transitions. [2024-11-08 19:11:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:11:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-08 19:11:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:44,057 INFO L225 Difference]: With dead ends: 1914 [2024-11-08 19:11:44,057 INFO L226 Difference]: Without dead ends: 1913 [2024-11-08 19:11:44,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:44,060 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 67 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:44,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 92 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2024-11-08 19:11:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1909. [2024-11-08 19:11:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1905 states have (on average 1.1664041994750656) internal successors, (2222), 1908 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2222 transitions. [2024-11-08 19:11:44,210 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2222 transitions. Word has length 38 [2024-11-08 19:11:44,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:44,212 INFO L471 AbstractCegarLoop]: Abstraction has 1909 states and 2222 transitions. [2024-11-08 19:11:44,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2222 transitions. [2024-11-08 19:11:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 19:11:44,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:44,219 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1] [2024-11-08 19:11:44,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 19:11:44,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 19:11:44,421 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:44,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1320458840, now seen corresponding path program 2 times [2024-11-08 19:11:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:44,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265382346] [2024-11-08 19:11:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:44,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:44,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265382346] [2024-11-08 19:11:44,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265382346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639783138] [2024-11-08 19:11:44,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:11:44,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:44,641 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:44,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:11:44,709 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:11:44,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:44,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:11:44,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:44,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:45,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639783138] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:45,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:45,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-08 19:11:45,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805358420] [2024-11-08 19:11:45,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:45,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:11:45,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:11:45,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:11:45,069 INFO L87 Difference]: Start difference. First operand 1909 states and 2222 transitions. Second operand has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:45,395 INFO L93 Difference]: Finished difference Result 3948 states and 4766 transitions. [2024-11-08 19:11:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:11:45,396 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-08 19:11:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:45,411 INFO L225 Difference]: With dead ends: 3948 [2024-11-08 19:11:45,412 INFO L226 Difference]: Without dead ends: 3947 [2024-11-08 19:11:45,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:11:45,415 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 135 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:45,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 113 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2024-11-08 19:11:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 2411. [2024-11-08 19:11:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2407 states have (on average 1.1832156211051101) internal successors, (2848), 2410 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 2848 transitions. [2024-11-08 19:11:45,584 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 2848 transitions. Word has length 49 [2024-11-08 19:11:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:45,585 INFO L471 AbstractCegarLoop]: Abstraction has 2411 states and 2848 transitions. [2024-11-08 19:11:45,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 2848 transitions. [2024-11-08 19:11:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 19:11:45,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:45,593 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-08 19:11:45,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 19:11:45,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 19:11:45,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:45,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash 489177867, now seen corresponding path program 3 times [2024-11-08 19:11:45,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:45,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747564351] [2024-11-08 19:11:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:46,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:46,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747564351] [2024-11-08 19:11:46,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747564351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:46,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40535959] [2024-11-08 19:11:46,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:11:46,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:46,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:46,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:46,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 19:11:46,281 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-08 19:11:46,281 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:46,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 19:11:46,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:46,448 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:46,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:46,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40535959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:46,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:46,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-08 19:11:46,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521063391] [2024-11-08 19:11:46,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:46,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 19:11:46,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:46,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 19:11:46,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:11:46,862 INFO L87 Difference]: Start difference. First operand 2411 states and 2848 transitions. Second operand has 24 states, 23 states have (on average 6.695652173913044) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:47,338 INFO L93 Difference]: Finished difference Result 6418 states and 8183 transitions. [2024-11-08 19:11:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 19:11:47,339 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.695652173913044) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-08 19:11:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:47,362 INFO L225 Difference]: With dead ends: 6418 [2024-11-08 19:11:47,362 INFO L226 Difference]: Without dead ends: 6416 [2024-11-08 19:11:47,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:11:47,367 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 168 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:47,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 187 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:11:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2024-11-08 19:11:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 3576. [2024-11-08 19:11:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3572 states have (on average 1.2026875699888018) internal successors, (4296), 3575 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 4296 transitions. [2024-11-08 19:11:47,653 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 4296 transitions. Word has length 78 [2024-11-08 19:11:47,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:47,655 INFO L471 AbstractCegarLoop]: Abstraction has 3576 states and 4296 transitions. [2024-11-08 19:11:47,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.695652173913044) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 4296 transitions. [2024-11-08 19:11:47,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 19:11:47,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:47,662 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2024-11-08 19:11:47,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:47,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:47,863 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:47,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1948496845, now seen corresponding path program 3 times [2024-11-08 19:11:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:47,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803573476] [2024-11-08 19:11:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:47,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:48,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:48,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803573476] [2024-11-08 19:11:48,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803573476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:48,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641055522] [2024-11-08 19:11:48,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:11:48,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:48,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:48,231 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:48,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 19:11:48,320 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-08 19:11:48,320 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:48,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 19:11:48,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:48,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:48,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641055522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:48,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:48,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-08 19:11:48,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941233925] [2024-11-08 19:11:48,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:48,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 19:11:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 19:11:48,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:11:48,953 INFO L87 Difference]: Start difference. First operand 3576 states and 4296 transitions. Second operand has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:49,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:49,861 INFO L93 Difference]: Finished difference Result 14063 states and 17394 transitions. [2024-11-08 19:11:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 19:11:49,861 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 19:11:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:49,920 INFO L225 Difference]: With dead ends: 14063 [2024-11-08 19:11:49,922 INFO L226 Difference]: Without dead ends: 14062 [2024-11-08 19:11:49,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:11:49,932 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 270 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:49,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 161 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:11:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14062 states. [2024-11-08 19:11:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14062 to 14054. [2024-11-08 19:11:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14054 states, 14050 states have (on average 1.1412099644128113) internal successors, (16034), 14053 states have internal predecessors, (16034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14054 states to 14054 states and 16034 transitions. [2024-11-08 19:11:51,117 INFO L78 Accepts]: Start accepts. Automaton has 14054 states and 16034 transitions. Word has length 80 [2024-11-08 19:11:51,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:51,118 INFO L471 AbstractCegarLoop]: Abstraction has 14054 states and 16034 transitions. [2024-11-08 19:11:51,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 14054 states and 16034 transitions. [2024-11-08 19:11:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 19:11:51,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:51,128 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1] [2024-11-08 19:11:51,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 19:11:51,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:51,332 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:51,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:51,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695144, now seen corresponding path program 3 times [2024-11-08 19:11:51,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:51,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058943980] [2024-11-08 19:11:51,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:51,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:51,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:51,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058943980] [2024-11-08 19:11:51,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058943980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:51,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173056829] [2024-11-08 19:11:51,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:11:51,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:51,898 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:51,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 19:11:51,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-08 19:11:51,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:51,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:11:51,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:52,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:52,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173056829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:52,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:52,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2024-11-08 19:11:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681709504] [2024-11-08 19:11:52,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 19:11:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 19:11:52,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:11:52,978 INFO L87 Difference]: Start difference. First operand 14054 states and 16034 transitions. Second operand has 32 states, 31 states have (on average 6.709677419354839) internal successors, (208), 32 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:54,945 INFO L93 Difference]: Finished difference Result 33012 states and 38755 transitions. [2024-11-08 19:11:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 19:11:54,946 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.709677419354839) internal successors, (208), 32 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-08 19:11:54,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:55,017 INFO L225 Difference]: With dead ends: 33012 [2024-11-08 19:11:55,018 INFO L226 Difference]: Without dead ends: 33011 [2024-11-08 19:11:55,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:11:55,037 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 225 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:55,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 229 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:11:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33011 states. [2024-11-08 19:11:56,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33011 to 16148. [2024-11-08 19:11:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16148 states, 16144 states have (on average 1.1512636273538157) internal successors, (18586), 16147 states have internal predecessors, (18586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16148 states to 16148 states and 18586 transitions. [2024-11-08 19:11:56,516 INFO L78 Accepts]: Start accepts. Automaton has 16148 states and 18586 transitions. Word has length 105 [2024-11-08 19:11:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:56,517 INFO L471 AbstractCegarLoop]: Abstraction has 16148 states and 18586 transitions. [2024-11-08 19:11:56,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.709677419354839) internal successors, (208), 32 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 16148 states and 18586 transitions. [2024-11-08 19:11:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 19:11:56,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:56,553 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2024-11-08 19:11:56,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:56,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 19:11:56,754 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:11:56,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:56,755 INFO L85 PathProgramCache]: Analyzing trace with hash -92087285, now seen corresponding path program 4 times [2024-11-08 19:11:56,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:56,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640951328] [2024-11-08 19:11:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:56,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:57,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:57,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640951328] [2024-11-08 19:11:57,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640951328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:57,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409386952] [2024-11-08 19:11:57,833 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:11:57,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:57,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:57,836 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:57,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 19:11:57,967 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:11:57,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:57,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:11:57,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:58,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:59,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409386952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:59,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:59,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-08 19:11:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61953926] [2024-11-08 19:11:59,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:59,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-08 19:11:59,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-08 19:11:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:11:59,805 INFO L87 Difference]: Start difference. First operand 16148 states and 18586 transitions. Second operand has 48 states, 47 states have (on average 6.851063829787234) internal successors, (322), 48 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:02,076 INFO L93 Difference]: Finished difference Result 45685 states and 56295 transitions. [2024-11-08 19:12:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-08 19:12:02,077 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.851063829787234) internal successors, (322), 48 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-08 19:12:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:02,176 INFO L225 Difference]: With dead ends: 45685 [2024-11-08 19:12:02,176 INFO L226 Difference]: Without dead ends: 45683 [2024-11-08 19:12:02,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:12:02,192 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 427 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:02,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 381 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:12:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45683 states. [2024-11-08 19:12:03,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45683 to 21167. [2024-11-08 19:12:03,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21167 states, 21163 states have (on average 1.1688323961631149) internal successors, (24736), 21166 states have internal predecessors, (24736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21167 states to 21167 states and 24736 transitions. [2024-11-08 19:12:03,992 INFO L78 Accepts]: Start accepts. Automaton has 21167 states and 24736 transitions. Word has length 162 [2024-11-08 19:12:03,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:03,993 INFO L471 AbstractCegarLoop]: Abstraction has 21167 states and 24736 transitions. [2024-11-08 19:12:03,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.851063829787234) internal successors, (322), 48 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:03,993 INFO L276 IsEmpty]: Start isEmpty. Operand 21167 states and 24736 transitions. [2024-11-08 19:12:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 19:12:04,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:04,034 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1] [2024-11-08 19:12:04,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 19:12:04,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 19:12:04,239 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:12:04,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:04,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1698434253, now seen corresponding path program 4 times [2024-11-08 19:12:04,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:12:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675338013] [2024-11-08 19:12:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:04,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:12:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:12:05,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675338013] [2024-11-08 19:12:05,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675338013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:12:05,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331393828] [2024-11-08 19:12:05,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:12:05,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:12:05,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:12:05,424 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:12:05,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 19:12:05,549 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:12:05,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:12:05,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:12:05,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:05,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:12:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331393828] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:12:07,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:12:07,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-08 19:12:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612134685] [2024-11-08 19:12:07,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:12:07,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-08 19:12:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:12:07,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-08 19:12:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:12:07,130 INFO L87 Difference]: Start difference. First operand 21167 states and 24736 transitions. Second operand has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:13,076 INFO L93 Difference]: Finished difference Result 107633 states and 131695 transitions. [2024-11-08 19:12:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-08 19:12:13,077 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2024-11-08 19:12:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:13,312 INFO L225 Difference]: With dead ends: 107633 [2024-11-08 19:12:13,312 INFO L226 Difference]: Without dead ends: 107632 [2024-11-08 19:12:13,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:12:13,345 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 464 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:13,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 328 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:12:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107632 states. [2024-11-08 19:12:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107632 to 107616. [2024-11-08 19:12:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107616 states, 107612 states have (on average 1.1267516633832657) internal successors, (121252), 107615 states have internal predecessors, (121252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107616 states to 107616 states and 121252 transitions. [2024-11-08 19:12:21,157 INFO L78 Accepts]: Start accepts. Automaton has 107616 states and 121252 transitions. Word has length 164 [2024-11-08 19:12:21,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:21,158 INFO L471 AbstractCegarLoop]: Abstraction has 107616 states and 121252 transitions. [2024-11-08 19:12:21,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 107616 states and 121252 transitions. [2024-11-08 19:12:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-08 19:12:21,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:21,247 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1] [2024-11-08 19:12:21,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:21,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 19:12:21,452 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 19:12:21,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1620693672, now seen corresponding path program 4 times [2024-11-08 19:12:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:12:21,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305596976] [2024-11-08 19:12:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:21,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:12:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 3165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:23,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:12:23,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305596976] [2024-11-08 19:12:23,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305596976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:12:23,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561582483] [2024-11-08 19:12:23,333 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:12:23,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:12:23,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:12:23,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:12:23,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86ffa16f-5686-4a9e-9e40-a9df66ea9a1f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 19:12:23,461 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:12:23,462 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:12:23,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 19:12:23,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 3165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:23,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:12:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 3165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:12:25,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561582483] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:12:25,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:12:25,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2024-11-08 19:12:25,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324659272] [2024-11-08 19:12:25,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:12:25,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-08 19:12:25,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:12:25,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-08 19:12:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 19:12:25,895 INFO L87 Difference]: Start difference. First operand 107616 states and 121252 transitions. Second operand has 64 states, 63 states have (on average 6.857142857142857) internal successors, (432), 64 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:12:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:39,273 INFO L93 Difference]: Finished difference Result 329451 states and 378500 transitions. [2024-11-08 19:12:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-08 19:12:39,274 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.857142857142857) internal successors, (432), 64 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-08 19:12:39,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:39,967 INFO L225 Difference]: With dead ends: 329451 [2024-11-08 19:12:39,967 INFO L226 Difference]: Without dead ends: 329450 [2024-11-08 19:12:40,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 19:12:40,080 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 798 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:40,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 455 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:12:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329450 states.