./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:22,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:22,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:36:22,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:22,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:22,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:22,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:22,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:22,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:22,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:22,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:22,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:22,413 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:22,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:22,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:22,415 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:22,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:22,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:22,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:22,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:22,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:22,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:22,419 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:36:22,419 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:36:22,420 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:22,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:22,421 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:22,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:22,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:22,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:22,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:22,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:22,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:22,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:22,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:22,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:22,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:22,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:22,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:22,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:22,428 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:22,428 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_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 [2023-11-19 07:36:22,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:22,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:22,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:22,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:22,755 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:22,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench/egcd-ll.c [2023-11-19 07:36:25,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:26,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:26,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/sv-benchmarks/c/nla-digbench/egcd-ll.c [2023-11-19 07:36:26,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/data/aedb2e9cf/b3cc08f0656d4d63b6c9ee606a7755c4/FLAGf77b51d8b [2023-11-19 07:36:26,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/data/aedb2e9cf/b3cc08f0656d4d63b6c9ee606a7755c4 [2023-11-19 07:36:26,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:26,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:26,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:26,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:26,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:26,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f224968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26, skipping insertion in model container [2023-11-19 07:36:26,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:26,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:26,530 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:26,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:26,583 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:26,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26 WrapperNode [2023-11-19 07:36:26,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:26,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:26,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:26,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:26,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,629 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 117 [2023-11-19 07:36:26,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:26,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:26,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:26,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:26,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:26,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:26,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:26,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:26,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (1/1) ... [2023-11-19 07:36:26,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:26,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:26,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:26,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:36:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:36:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:36:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:36:26,827 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:26,833 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:27,263 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:27,274 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:27,274 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:36:27,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:27 BoogieIcfgContainer [2023-11-19 07:36:27,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:27,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:27,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:27,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:27,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:26" (1/3) ... [2023-11-19 07:36:27,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af717d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:27, skipping insertion in model container [2023-11-19 07:36:27,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:26" (2/3) ... [2023-11-19 07:36:27,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af717d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:27, skipping insertion in model container [2023-11-19 07:36:27,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:27" (3/3) ... [2023-11-19 07:36:27,289 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll.c [2023-11-19 07:36:27,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:27,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-19 07:36:27,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:27,372 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64803d9c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:27,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-19 07:36:27,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:36:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:36:27,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:27,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:27,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:27,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1636590720, now seen corresponding path program 1 times [2023-11-19 07:36:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:27,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214723665] [2023-11-19 07:36:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:27,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214723665] [2023-11-19 07:36:27,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214723665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:27,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:27,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:27,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835811857] [2023-11-19 07:36:27,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:27,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:27,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:27,721 INFO L87 Difference]: Start difference. First operand has 141 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:36:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:27,795 INFO L93 Difference]: Finished difference Result 278 states and 310 transitions. [2023-11-19 07:36:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:36:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-19 07:36:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:27,806 INFO L225 Difference]: With dead ends: 278 [2023-11-19 07:36:27,806 INFO L226 Difference]: Without dead ends: 134 [2023-11-19 07:36:27,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:27,814 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:27,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-19 07:36:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-11-19 07:36:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 68 states have (on average 1.838235294117647) internal successors, (125), 123 states have internal predecessors, (125), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:36:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 141 transitions. [2023-11-19 07:36:27,909 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 141 transitions. Word has length 15 [2023-11-19 07:36:27,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:27,909 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 141 transitions. [2023-11-19 07:36:27,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:36:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2023-11-19 07:36:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:36:27,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:27,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:27,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:36:27,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:27,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:27,916 INFO L85 PathProgramCache]: Analyzing trace with hash -878270273, now seen corresponding path program 1 times [2023-11-19 07:36:27,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213113980] [2023-11-19 07:36:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:27,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:27,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:27,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415969720] [2023-11-19 07:36:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:27,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:27,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:27,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:27,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:36:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:28,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:36:28,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:28,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:28,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213113980] [2023-11-19 07:36:28,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:28,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415969720] [2023-11-19 07:36:28,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415969720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:28,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:28,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510671619] [2023-11-19 07:36:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:28,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:28,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:28,136 INFO L87 Difference]: Start difference. First operand 134 states and 141 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:28,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:28,524 INFO L93 Difference]: Finished difference Result 251 states and 265 transitions. [2023-11-19 07:36:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:28,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-19 07:36:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:28,533 INFO L225 Difference]: With dead ends: 251 [2023-11-19 07:36:28,533 INFO L226 Difference]: Without dead ends: 247 [2023-11-19 07:36:28,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:28,539 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 105 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:28,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 138 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-19 07:36:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 173. [2023-11-19 07:36:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 102 states have (on average 1.8431372549019607) internal successors, (188), 157 states have internal predecessors, (188), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:36:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2023-11-19 07:36:28,576 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 15 [2023-11-19 07:36:28,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:28,577 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2023-11-19 07:36:28,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2023-11-19 07:36:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 07:36:28,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:28,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:28,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:28,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:28,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:28,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2090826497, now seen corresponding path program 1 times [2023-11-19 07:36:28,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:28,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258942352] [2023-11-19 07:36:28,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:28,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:28,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:28,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178024791] [2023-11-19 07:36:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:28,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:28,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:28,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:36:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:28,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:36:28,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:28,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258942352] [2023-11-19 07:36:28,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178024791] [2023-11-19 07:36:28,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178024791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:28,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498614753] [2023-11-19 07:36:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:28,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:28,899 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:29,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:29,025 INFO L93 Difference]: Finished difference Result 290 states and 338 transitions. [2023-11-19 07:36:29,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:29,025 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-19 07:36:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:29,028 INFO L225 Difference]: With dead ends: 290 [2023-11-19 07:36:29,028 INFO L226 Difference]: Without dead ends: 282 [2023-11-19 07:36:29,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:29,030 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 100 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:29,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 198 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-19 07:36:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 226. [2023-11-19 07:36:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 149 states have (on average 1.7919463087248322) internal successors, (267), 204 states have internal predecessors, (267), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 07:36:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 305 transitions. [2023-11-19 07:36:29,051 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 305 transitions. Word has length 17 [2023-11-19 07:36:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:29,052 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 305 transitions. [2023-11-19 07:36:29,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 305 transitions. [2023-11-19 07:36:29,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:36:29,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:29,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:29,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:29,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:29,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:29,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash -760429245, now seen corresponding path program 1 times [2023-11-19 07:36:29,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:29,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252940883] [2023-11-19 07:36:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:29,295 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:29,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327507993] [2023-11-19 07:36:29,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:29,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:29,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:29,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:29,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:36:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:29,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:36:29,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:29,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:29,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:29,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252940883] [2023-11-19 07:36:29,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:29,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327507993] [2023-11-19 07:36:29,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327507993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:29,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:29,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621798293] [2023-11-19 07:36:29,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:29,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:29,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:29,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:29,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:29,436 INFO L87 Difference]: Start difference. First operand 226 states and 305 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:29,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:29,707 INFO L93 Difference]: Finished difference Result 282 states and 324 transitions. [2023-11-19 07:36:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:29,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-19 07:36:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:29,710 INFO L225 Difference]: With dead ends: 282 [2023-11-19 07:36:29,711 INFO L226 Difference]: Without dead ends: 268 [2023-11-19 07:36:29,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:29,712 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 83 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:29,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 124 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-19 07:36:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 191. [2023-11-19 07:36:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 119 states have (on average 1.7142857142857142) internal successors, (204), 174 states have internal predecessors, (204), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:36:29,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 232 transitions. [2023-11-19 07:36:29,728 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 232 transitions. Word has length 19 [2023-11-19 07:36:29,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:29,729 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 232 transitions. [2023-11-19 07:36:29,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 232 transitions. [2023-11-19 07:36:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:36:29,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:29,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:29,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:29,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:29,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:29,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2013228301, now seen corresponding path program 1 times [2023-11-19 07:36:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:29,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203651463] [2023-11-19 07:36:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:29,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565750833] [2023-11-19 07:36:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:29,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:29,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:36:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:30,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:36:30,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:30,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:30,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203651463] [2023-11-19 07:36:30,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:30,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565750833] [2023-11-19 07:36:30,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565750833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:30,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:30,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915195126] [2023-11-19 07:36:30,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:30,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:30,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:30,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:30,089 INFO L87 Difference]: Start difference. First operand 191 states and 232 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:30,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:30,214 INFO L93 Difference]: Finished difference Result 369 states and 451 transitions. [2023-11-19 07:36:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-11-19 07:36:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:30,226 INFO L225 Difference]: With dead ends: 369 [2023-11-19 07:36:30,226 INFO L226 Difference]: Without dead ends: 361 [2023-11-19 07:36:30,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:30,228 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 100 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:30,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 192 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-19 07:36:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 270. [2023-11-19 07:36:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 189 states have (on average 1.693121693121693) internal successors, (320), 244 states have internal predecessors, (320), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 366 transitions. [2023-11-19 07:36:30,264 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 366 transitions. Word has length 26 [2023-11-19 07:36:30,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:30,265 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 366 transitions. [2023-11-19 07:36:30,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:30,265 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 366 transitions. [2023-11-19 07:36:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:36:30,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:30,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:30,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:30,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:30,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:30,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1977112107, now seen corresponding path program 1 times [2023-11-19 07:36:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238350151] [2023-11-19 07:36:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:30,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:30,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142412530] [2023-11-19 07:36:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:30,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:30,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:30,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:30,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:36:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:30,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:30,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:30,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:30,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:30,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238350151] [2023-11-19 07:36:30,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:30,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142412530] [2023-11-19 07:36:30,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142412530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:30,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:30,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344228111] [2023-11-19 07:36:30,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:30,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:30,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:30,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:30,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:30,676 INFO L87 Difference]: Start difference. First operand 270 states and 366 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:31,080 INFO L93 Difference]: Finished difference Result 355 states and 431 transitions. [2023-11-19 07:36:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:31,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-19 07:36:31,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:31,083 INFO L225 Difference]: With dead ends: 355 [2023-11-19 07:36:31,084 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:36:31,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:31,085 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 209 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:31,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:36:31,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:36:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 270. [2023-11-19 07:36:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 189 states have (on average 1.6719576719576719) internal successors, (316), 244 states have internal predecessors, (316), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 362 transitions. [2023-11-19 07:36:31,106 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 362 transitions. Word has length 28 [2023-11-19 07:36:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:31,107 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 362 transitions. [2023-11-19 07:36:31,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 362 transitions. [2023-11-19 07:36:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 07:36:31,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:31,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:31,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:31,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:31,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:31,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1160933108, now seen corresponding path program 1 times [2023-11-19 07:36:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:31,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679159440] [2023-11-19 07:36:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:31,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720991877] [2023-11-19 07:36:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:31,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:31,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:31,342 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:31,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:36:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:31,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:31,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:31,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679159440] [2023-11-19 07:36:31,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720991877] [2023-11-19 07:36:31,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720991877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:31,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:31,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:31,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793640634] [2023-11-19 07:36:31,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:31,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:31,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:31,510 INFO L87 Difference]: Start difference. First operand 270 states and 362 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:31,754 INFO L93 Difference]: Finished difference Result 353 states and 427 transitions. [2023-11-19 07:36:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:31,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-11-19 07:36:31,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:31,758 INFO L225 Difference]: With dead ends: 353 [2023-11-19 07:36:31,759 INFO L226 Difference]: Without dead ends: 351 [2023-11-19 07:36:31,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:31,760 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 206 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:31,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-19 07:36:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 270. [2023-11-19 07:36:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 189 states have (on average 1.6507936507936507) internal successors, (312), 244 states have internal predecessors, (312), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 358 transitions. [2023-11-19 07:36:31,786 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 358 transitions. Word has length 29 [2023-11-19 07:36:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:31,787 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 358 transitions. [2023-11-19 07:36:31,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 358 transitions. [2023-11-19 07:36:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:36:31,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:31,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:31,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:36:32,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:32,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:32,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1629187913, now seen corresponding path program 1 times [2023-11-19 07:36:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:32,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505308564] [2023-11-19 07:36:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:32,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:32,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946025867] [2023-11-19 07:36:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:32,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:32,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:32,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:32,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:36:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:32,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:32,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:32,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:32,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505308564] [2023-11-19 07:36:32,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:32,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946025867] [2023-11-19 07:36:32,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946025867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:32,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:32,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:32,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700479096] [2023-11-19 07:36:32,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:32,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:32,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:32,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:32,135 INFO L87 Difference]: Start difference. First operand 270 states and 358 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:32,351 INFO L93 Difference]: Finished difference Result 357 states and 431 transitions. [2023-11-19 07:36:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:32,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-19 07:36:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:32,355 INFO L225 Difference]: With dead ends: 357 [2023-11-19 07:36:32,355 INFO L226 Difference]: Without dead ends: 355 [2023-11-19 07:36:32,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:32,356 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 185 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:32,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 163 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-19 07:36:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 271. [2023-11-19 07:36:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 190 states have (on average 1.631578947368421) internal successors, (310), 245 states have internal predecessors, (310), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 356 transitions. [2023-11-19 07:36:32,379 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 356 transitions. Word has length 30 [2023-11-19 07:36:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:32,380 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 356 transitions. [2023-11-19 07:36:32,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 356 transitions. [2023-11-19 07:36:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:36:32,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:32,381 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:32,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:32,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:32,595 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:32,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1034782318, now seen corresponding path program 1 times [2023-11-19 07:36:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:32,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390515691] [2023-11-19 07:36:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:32,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:32,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:32,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207361204] [2023-11-19 07:36:32,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:32,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:32,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:32,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:32,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:36:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:32,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:32,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:36:32,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:32,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:32,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390515691] [2023-11-19 07:36:32,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:32,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207361204] [2023-11-19 07:36:32,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207361204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:32,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:32,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:32,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691243219] [2023-11-19 07:36:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:32,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:32,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:32,716 INFO L87 Difference]: Start difference. First operand 271 states and 356 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:33,048 INFO L93 Difference]: Finished difference Result 355 states and 427 transitions. [2023-11-19 07:36:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:33,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-19 07:36:33,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:33,051 INFO L225 Difference]: With dead ends: 355 [2023-11-19 07:36:33,051 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:36:33,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:33,052 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 97 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:33,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 213 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:36:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 272. [2023-11-19 07:36:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.612565445026178) internal successors, (308), 246 states have internal predecessors, (308), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:33,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 354 transitions. [2023-11-19 07:36:33,071 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 354 transitions. Word has length 31 [2023-11-19 07:36:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:33,072 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 354 transitions. [2023-11-19 07:36:33,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:36:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 354 transitions. [2023-11-19 07:36:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:36:33,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:33,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:33,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:33,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:33,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:33,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash -787965737, now seen corresponding path program 1 times [2023-11-19 07:36:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619730601] [2023-11-19 07:36:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:33,308 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:33,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597890633] [2023-11-19 07:36:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:33,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:33,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:33,312 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:33,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:36:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:33,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:33,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:36:33,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:33,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:33,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619730601] [2023-11-19 07:36:33,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:33,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597890633] [2023-11-19 07:36:33,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597890633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:33,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:33,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960237060] [2023-11-19 07:36:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:33,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:33,484 INFO L87 Difference]: Start difference. First operand 272 states and 354 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:33,992 INFO L93 Difference]: Finished difference Result 316 states and 373 transitions. [2023-11-19 07:36:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-19 07:36:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:33,995 INFO L225 Difference]: With dead ends: 316 [2023-11-19 07:36:33,996 INFO L226 Difference]: Without dead ends: 314 [2023-11-19 07:36:33,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:33,997 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 193 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:33,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 162 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:36:33,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-19 07:36:34,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 273. [2023-11-19 07:36:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 192 states have (on average 1.5989583333333333) internal successors, (307), 247 states have internal predecessors, (307), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:34,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2023-11-19 07:36:34,017 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 39 [2023-11-19 07:36:34,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:34,017 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2023-11-19 07:36:34,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:34,017 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2023-11-19 07:36:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:36:34,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:34,018 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:34,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:34,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:36:34,239 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:34,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1342866007, now seen corresponding path program 1 times [2023-11-19 07:36:34,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:34,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957338104] [2023-11-19 07:36:34,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:34,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:34,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581864060] [2023-11-19 07:36:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:34,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:34,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:34,264 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:34,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:36:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:34,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:34,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:36:34,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:34,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957338104] [2023-11-19 07:36:34,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:34,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581864060] [2023-11-19 07:36:34,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581864060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:34,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:34,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468553816] [2023-11-19 07:36:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:34,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:34,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:34,429 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:34,664 INFO L93 Difference]: Finished difference Result 314 states and 370 transitions. [2023-11-19 07:36:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:34,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-19 07:36:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:34,668 INFO L225 Difference]: With dead ends: 314 [2023-11-19 07:36:34,668 INFO L226 Difference]: Without dead ends: 312 [2023-11-19 07:36:34,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:34,669 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 263 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:34,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 147 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-19 07:36:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 274. [2023-11-19 07:36:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 193 states have (on average 1.5854922279792747) internal successors, (306), 248 states have internal predecessors, (306), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 352 transitions. [2023-11-19 07:36:34,691 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 352 transitions. Word has length 40 [2023-11-19 07:36:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:34,692 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 352 transitions. [2023-11-19 07:36:34,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 352 transitions. [2023-11-19 07:36:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:36:34,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:34,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:34,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:34,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:34,911 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:34,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1320826663, now seen corresponding path program 1 times [2023-11-19 07:36:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:34,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118779104] [2023-11-19 07:36:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:34,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008901885] [2023-11-19 07:36:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:34,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:34,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:34,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:34,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:36:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:34,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:34,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:36:35,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:35,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118779104] [2023-11-19 07:36:35,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008901885] [2023-11-19 07:36:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008901885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:35,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:35,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128237989] [2023-11-19 07:36:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:35,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:35,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:35,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:35,026 INFO L87 Difference]: Start difference. First operand 274 states and 352 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:35,506 INFO L93 Difference]: Finished difference Result 306 states and 359 transitions. [2023-11-19 07:36:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:35,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-19 07:36:35,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:35,509 INFO L225 Difference]: With dead ends: 306 [2023-11-19 07:36:35,509 INFO L226 Difference]: Without dead ends: 304 [2023-11-19 07:36:35,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:35,510 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 81 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:35,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 238 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:36:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-11-19 07:36:35,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 275. [2023-11-19 07:36:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 194 states have (on average 1.5721649484536082) internal successors, (305), 249 states have internal predecessors, (305), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 351 transitions. [2023-11-19 07:36:35,530 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 351 transitions. Word has length 41 [2023-11-19 07:36:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:35,530 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 351 transitions. [2023-11-19 07:36:35,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 351 transitions. [2023-11-19 07:36:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:36:35,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:35,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:35,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:35,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:35,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:35,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2004046489, now seen corresponding path program 1 times [2023-11-19 07:36:35,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:35,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497521636] [2023-11-19 07:36:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:35,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141959055] [2023-11-19 07:36:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:35,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:35,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:35,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:35,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:36:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:35,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:35,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:36:35,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:35,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:35,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497521636] [2023-11-19 07:36:35,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:35,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141959055] [2023-11-19 07:36:35,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141959055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:35,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:35,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:35,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171245350] [2023-11-19 07:36:35,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:35,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:35,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:35,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:35,885 INFO L87 Difference]: Start difference. First operand 275 states and 351 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:36,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:36,126 INFO L93 Difference]: Finished difference Result 304 states and 356 transitions. [2023-11-19 07:36:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:36,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-19 07:36:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:36,128 INFO L225 Difference]: With dead ends: 304 [2023-11-19 07:36:36,129 INFO L226 Difference]: Without dead ends: 302 [2023-11-19 07:36:36,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:36,130 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 79 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:36,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 241 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-19 07:36:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 276. [2023-11-19 07:36:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 195 states have (on average 1.558974358974359) internal successors, (304), 250 states have internal predecessors, (304), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 350 transitions. [2023-11-19 07:36:36,162 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 350 transitions. Word has length 42 [2023-11-19 07:36:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:36,168 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 350 transitions. [2023-11-19 07:36:36,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:36:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 350 transitions. [2023-11-19 07:36:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:36:36,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:36,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:36,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:36,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:36:36,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:36,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:36,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1148688527, now seen corresponding path program 1 times [2023-11-19 07:36:36,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:36,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653860549] [2023-11-19 07:36:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:36,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:36,394 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:36,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622276978] [2023-11-19 07:36:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:36,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:36,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:36,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:36,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:36:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:36,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:36:36,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:36,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653860549] [2023-11-19 07:36:36,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622276978] [2023-11-19 07:36:36,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622276978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:36,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:36,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533881284] [2023-11-19 07:36:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:36,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:36,460 INFO L87 Difference]: Start difference. First operand 276 states and 350 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:36,502 INFO L93 Difference]: Finished difference Result 276 states and 350 transitions. [2023-11-19 07:36:36,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:36,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2023-11-19 07:36:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:36,505 INFO L225 Difference]: With dead ends: 276 [2023-11-19 07:36:36,505 INFO L226 Difference]: Without dead ends: 274 [2023-11-19 07:36:36,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:36,507 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 52 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:36,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 199 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-19 07:36:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-11-19 07:36:36,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 195 states have (on average 1.528205128205128) internal successors, (298), 248 states have internal predecessors, (298), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 344 transitions. [2023-11-19 07:36:36,529 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 344 transitions. Word has length 49 [2023-11-19 07:36:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:36,529 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 344 transitions. [2023-11-19 07:36:36,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:36,530 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 344 transitions. [2023-11-19 07:36:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:36:36,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:36,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:36,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:36,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:36:36,752 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:36,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1249605844, now seen corresponding path program 1 times [2023-11-19 07:36:36,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:36,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226400029] [2023-11-19 07:36:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:36,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:36,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582275083] [2023-11-19 07:36:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:36,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:36,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:36,764 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:36,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:36:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:36,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:36:36,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:36,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:36,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:36,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226400029] [2023-11-19 07:36:36,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:36,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582275083] [2023-11-19 07:36:36,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582275083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:36,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:36,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:36,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297047610] [2023-11-19 07:36:36,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:36,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:36,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:36,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:36,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:36,842 INFO L87 Difference]: Start difference. First operand 274 states and 344 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:36,888 INFO L93 Difference]: Finished difference Result 274 states and 344 transitions. [2023-11-19 07:36:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2023-11-19 07:36:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:36,893 INFO L225 Difference]: With dead ends: 274 [2023-11-19 07:36:36,893 INFO L226 Difference]: Without dead ends: 272 [2023-11-19 07:36:36,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:36,896 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 50 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:36,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 198 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-19 07:36:36,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-11-19 07:36:36,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 195 states have (on average 1.4871794871794872) internal successors, (290), 246 states have internal predecessors, (290), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:36,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 336 transitions. [2023-11-19 07:36:36,921 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 336 transitions. Word has length 50 [2023-11-19 07:36:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:36,922 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 336 transitions. [2023-11-19 07:36:36,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 336 transitions. [2023-11-19 07:36:36,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:36:36,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:36,924 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:36,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:37,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:37,139 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:37,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash -83033665, now seen corresponding path program 1 times [2023-11-19 07:36:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:37,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704577077] [2023-11-19 07:36:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:37,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:37,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219580519] [2023-11-19 07:36:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:37,154 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:37,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:36:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:37,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:36:37,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:37,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704577077] [2023-11-19 07:36:37,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219580519] [2023-11-19 07:36:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219580519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742562170] [2023-11-19 07:36:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:37,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:37,344 INFO L87 Difference]: Start difference. First operand 272 states and 336 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:37,974 INFO L93 Difference]: Finished difference Result 300 states and 364 transitions. [2023-11-19 07:36:37,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:37,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-19 07:36:37,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:37,976 INFO L225 Difference]: With dead ends: 300 [2023-11-19 07:36:37,977 INFO L226 Difference]: Without dead ends: 299 [2023-11-19 07:36:37,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:37,978 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 203 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:37,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 153 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:36:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-19 07:36:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 272. [2023-11-19 07:36:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 195 states have (on average 1.4820512820512821) internal successors, (289), 246 states have internal predecessors, (289), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 335 transitions. [2023-11-19 07:36:37,997 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 335 transitions. Word has length 51 [2023-11-19 07:36:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:37,998 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 335 transitions. [2023-11-19 07:36:37,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:37,998 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 335 transitions. [2023-11-19 07:36:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:36:37,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:37,999 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:38,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:38,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:38,219 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:38,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash -83047567, now seen corresponding path program 1 times [2023-11-19 07:36:38,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023216347] [2023-11-19 07:36:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:38,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:38,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306099141] [2023-11-19 07:36:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:38,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:38,244 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:38,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:36:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:38,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:36:38,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:38,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:38,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:38,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023216347] [2023-11-19 07:36:38,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:38,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306099141] [2023-11-19 07:36:38,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306099141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:38,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:38,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:38,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66542180] [2023-11-19 07:36:38,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:38,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:38,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:38,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:38,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:38,444 INFO L87 Difference]: Start difference. First operand 272 states and 335 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:39,127 INFO L93 Difference]: Finished difference Result 299 states and 363 transitions. [2023-11-19 07:36:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:39,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-19 07:36:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:39,130 INFO L225 Difference]: With dead ends: 299 [2023-11-19 07:36:39,130 INFO L226 Difference]: Without dead ends: 298 [2023-11-19 07:36:39,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:39,131 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 201 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:39,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 154 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:36:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-19 07:36:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 274. [2023-11-19 07:36:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 197 states have (on average 1.4771573604060915) internal successors, (291), 248 states have internal predecessors, (291), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 337 transitions. [2023-11-19 07:36:39,150 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 337 transitions. Word has length 51 [2023-11-19 07:36:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:39,150 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 337 transitions. [2023-11-19 07:36:39,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 337 transitions. [2023-11-19 07:36:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:36:39,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:39,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:39,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:39,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:36:39,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:39,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:39,372 INFO L85 PathProgramCache]: Analyzing trace with hash 245358770, now seen corresponding path program 1 times [2023-11-19 07:36:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590837143] [2023-11-19 07:36:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:39,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:39,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:39,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708635743] [2023-11-19 07:36:39,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:39,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:39,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:39,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:39,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:36:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:39,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:36:39,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:39,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:39,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:39,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590837143] [2023-11-19 07:36:39,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:39,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708635743] [2023-11-19 07:36:39,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708635743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:39,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:39,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947706508] [2023-11-19 07:36:39,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:39,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:39,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:39,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:39,582 INFO L87 Difference]: Start difference. First operand 274 states and 337 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:39,704 INFO L93 Difference]: Finished difference Result 274 states and 337 transitions. [2023-11-19 07:36:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-19 07:36:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:39,707 INFO L225 Difference]: With dead ends: 274 [2023-11-19 07:36:39,707 INFO L226 Difference]: Without dead ends: 272 [2023-11-19 07:36:39,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:39,708 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:39,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 79 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:39,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-19 07:36:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-11-19 07:36:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 197 states have (on average 1.4568527918781726) internal successors, (287), 246 states have internal predecessors, (287), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2023-11-19 07:36:39,729 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 54 [2023-11-19 07:36:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:39,729 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2023-11-19 07:36:39,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2023-11-19 07:36:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:36:39,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:39,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:39,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:39,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:36:39,952 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:39,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -168809614, now seen corresponding path program 1 times [2023-11-19 07:36:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308974345] [2023-11-19 07:36:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:39,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:39,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:39,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913007484] [2023-11-19 07:36:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:39,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:39,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:39,961 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:39,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:36:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:40,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:36:40,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:40,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:40,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:40,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308974345] [2023-11-19 07:36:40,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:40,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913007484] [2023-11-19 07:36:40,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913007484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:40,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:40,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:40,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871379574] [2023-11-19 07:36:40,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:40,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:40,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:40,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:40,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:40,114 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:40,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:40,421 INFO L93 Difference]: Finished difference Result 349 states and 399 transitions. [2023-11-19 07:36:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:40,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-19 07:36:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:40,424 INFO L225 Difference]: With dead ends: 349 [2023-11-19 07:36:40,424 INFO L226 Difference]: Without dead ends: 347 [2023-11-19 07:36:40,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:40,425 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 65 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:40,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-19 07:36:40,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 280. [2023-11-19 07:36:40,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 205 states have (on average 1.448780487804878) internal successors, (297), 254 states have internal predecessors, (297), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:40,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 343 transitions. [2023-11-19 07:36:40,445 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 343 transitions. Word has length 54 [2023-11-19 07:36:40,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:40,446 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 343 transitions. [2023-11-19 07:36:40,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:40,446 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 343 transitions. [2023-11-19 07:36:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:36:40,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:40,447 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:40,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:40,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:40,663 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:40,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:40,664 INFO L85 PathProgramCache]: Analyzing trace with hash -551106875, now seen corresponding path program 1 times [2023-11-19 07:36:40,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:40,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825246458] [2023-11-19 07:36:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:40,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:40,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:40,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410076880] [2023-11-19 07:36:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:40,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:40,686 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:40,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:36:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:40,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:36:40,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:40,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:41,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:41,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825246458] [2023-11-19 07:36:41,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:41,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410076880] [2023-11-19 07:36:41,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410076880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:41,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:41,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-19 07:36:41,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869418795] [2023-11-19 07:36:41,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:41,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:41,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:41,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:41,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:41,106 INFO L87 Difference]: Start difference. First operand 280 states and 343 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:41,373 INFO L93 Difference]: Finished difference Result 345 states and 394 transitions. [2023-11-19 07:36:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2023-11-19 07:36:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:41,375 INFO L225 Difference]: With dead ends: 345 [2023-11-19 07:36:41,376 INFO L226 Difference]: Without dead ends: 343 [2023-11-19 07:36:41,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:41,376 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 60 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:41,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 174 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:36:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-19 07:36:41,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 281. [2023-11-19 07:36:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 206 states have (on average 1.441747572815534) internal successors, (297), 255 states have internal predecessors, (297), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 343 transitions. [2023-11-19 07:36:41,398 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 343 transitions. Word has length 57 [2023-11-19 07:36:41,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:41,398 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 343 transitions. [2023-11-19 07:36:41,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 343 transitions. [2023-11-19 07:36:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:36:41,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:41,399 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:41,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:41,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:41,620 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:41,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 95556107, now seen corresponding path program 1 times [2023-11-19 07:36:41,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:41,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013393305] [2023-11-19 07:36:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:41,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:41,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:41,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454661448] [2023-11-19 07:36:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:41,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:41,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:41,633 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:41,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:36:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:41,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:36:41,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:36:41,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013393305] [2023-11-19 07:36:41,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454661448] [2023-11-19 07:36:41,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454661448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:41,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:41,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-19 07:36:41,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850885391] [2023-11-19 07:36:41,995 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:41,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:41,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:41,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:41,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:41,996 INFO L87 Difference]: Start difference. First operand 281 states and 343 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:42,512 INFO L93 Difference]: Finished difference Result 343 states and 392 transitions. [2023-11-19 07:36:42,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:42,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2023-11-19 07:36:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:42,515 INFO L225 Difference]: With dead ends: 343 [2023-11-19 07:36:42,515 INFO L226 Difference]: Without dead ends: 341 [2023-11-19 07:36:42,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:42,516 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 58 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:42,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 174 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:36:42,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-19 07:36:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 282. [2023-11-19 07:36:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 207 states have (on average 1.434782608695652) internal successors, (297), 256 states have internal predecessors, (297), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 343 transitions. [2023-11-19 07:36:42,537 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 343 transitions. Word has length 58 [2023-11-19 07:36:42,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:42,538 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 343 transitions. [2023-11-19 07:36:42,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:42,538 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 343 transitions. [2023-11-19 07:36:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:36:42,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:42,539 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:42,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:42,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 07:36:42,763 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:42,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:42,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1661736759, now seen corresponding path program 1 times [2023-11-19 07:36:42,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:42,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321632677] [2023-11-19 07:36:42,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:42,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:42,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:42,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146868884] [2023-11-19 07:36:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:42,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:42,776 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:42,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:36:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:42,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:36:42,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:36:43,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:43,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:43,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321632677] [2023-11-19 07:36:43,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:43,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146868884] [2023-11-19 07:36:43,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146868884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:43,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:43,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:43,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669025856] [2023-11-19 07:36:43,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:43,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:43,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:43,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:43,062 INFO L87 Difference]: Start difference. First operand 282 states and 343 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:43,478 INFO L93 Difference]: Finished difference Result 341 states and 390 transitions. [2023-11-19 07:36:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:36:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2023-11-19 07:36:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:43,481 INFO L225 Difference]: With dead ends: 341 [2023-11-19 07:36:43,481 INFO L226 Difference]: Without dead ends: 340 [2023-11-19 07:36:43,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:43,482 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 97 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:43,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 122 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:36:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-19 07:36:43,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 283. [2023-11-19 07:36:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.4278846153846154) internal successors, (297), 257 states have internal predecessors, (297), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 343 transitions. [2023-11-19 07:36:43,503 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 343 transitions. Word has length 62 [2023-11-19 07:36:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:43,503 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 343 transitions. [2023-11-19 07:36:43,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 343 transitions. [2023-11-19 07:36:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 07:36:43,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:43,505 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:43,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:43,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:36:43,721 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:43,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash -851283895, now seen corresponding path program 1 times [2023-11-19 07:36:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127778370] [2023-11-19 07:36:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:43,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:43,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147901158] [2023-11-19 07:36:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:43,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:43,746 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:43,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:36:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:43,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:43,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:36:43,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127778370] [2023-11-19 07:36:43,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:43,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147901158] [2023-11-19 07:36:43,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147901158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:43,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:43,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:43,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964714312] [2023-11-19 07:36:43,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:43,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:43,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:43,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:43,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:43,893 INFO L87 Difference]: Start difference. First operand 283 states and 343 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:44,234 INFO L93 Difference]: Finished difference Result 342 states and 390 transitions. [2023-11-19 07:36:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:44,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-19 07:36:44,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:44,238 INFO L225 Difference]: With dead ends: 342 [2023-11-19 07:36:44,238 INFO L226 Difference]: Without dead ends: 341 [2023-11-19 07:36:44,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:44,239 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 80 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:44,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 201 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:44,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-19 07:36:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 283. [2023-11-19 07:36:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.4230769230769231) internal successors, (296), 257 states have internal predecessors, (296), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 342 transitions. [2023-11-19 07:36:44,265 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 342 transitions. Word has length 61 [2023-11-19 07:36:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:44,266 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 342 transitions. [2023-11-19 07:36:44,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 342 transitions. [2023-11-19 07:36:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:36:44,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:44,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:44,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:44,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:36:44,492 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:44,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash 25768165, now seen corresponding path program 1 times [2023-11-19 07:36:44,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:44,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507634712] [2023-11-19 07:36:44,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:44,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:44,501 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779897635] [2023-11-19 07:36:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:44,503 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:44,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:36:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:36:44,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:36:44,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:44,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:44,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507634712] [2023-11-19 07:36:44,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:44,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779897635] [2023-11-19 07:36:44,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779897635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:44,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:44,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796112761] [2023-11-19 07:36:44,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:44,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:44,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:44,816 INFO L87 Difference]: Start difference. First operand 283 states and 342 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:45,171 INFO L93 Difference]: Finished difference Result 337 states and 387 transitions. [2023-11-19 07:36:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:45,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2023-11-19 07:36:45,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:45,174 INFO L225 Difference]: With dead ends: 337 [2023-11-19 07:36:45,174 INFO L226 Difference]: Without dead ends: 336 [2023-11-19 07:36:45,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:45,175 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 89 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:45,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-19 07:36:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 284. [2023-11-19 07:36:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 209 states have (on average 1.4162679425837321) internal successors, (296), 258 states have internal predecessors, (296), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:45,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 342 transitions. [2023-11-19 07:36:45,227 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 342 transitions. Word has length 63 [2023-11-19 07:36:45,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:45,228 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 342 transitions. [2023-11-19 07:36:45,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:45,228 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 342 transitions. [2023-11-19 07:36:45,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:36:45,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:45,229 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:45,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:45,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:36:45,443 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:45,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:45,444 INFO L85 PathProgramCache]: Analyzing trace with hash -619996913, now seen corresponding path program 1 times [2023-11-19 07:36:45,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:45,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813453163] [2023-11-19 07:36:45,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:45,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:45,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:45,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408551803] [2023-11-19 07:36:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:45,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:45,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:45,458 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 07:36:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:45,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:45,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:45,573 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-19 07:36:45,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:45,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:45,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813453163] [2023-11-19 07:36:45,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408551803] [2023-11-19 07:36:45,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408551803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:45,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:45,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823661710] [2023-11-19 07:36:45,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:45,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:45,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:45,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:45,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:45,577 INFO L87 Difference]: Start difference. First operand 284 states and 342 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:45,718 INFO L93 Difference]: Finished difference Result 340 states and 387 transitions. [2023-11-19 07:36:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:36:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2023-11-19 07:36:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:45,720 INFO L225 Difference]: With dead ends: 340 [2023-11-19 07:36:45,720 INFO L226 Difference]: Without dead ends: 337 [2023-11-19 07:36:45,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:45,722 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 128 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:45,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 161 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-19 07:36:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 287. [2023-11-19 07:36:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 212 states have (on average 1.4103773584905661) internal successors, (299), 261 states have internal predecessors, (299), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:36:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 345 transitions. [2023-11-19 07:36:45,748 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 345 transitions. Word has length 62 [2023-11-19 07:36:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:45,748 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 345 transitions. [2023-11-19 07:36:45,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:36:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 345 transitions. [2023-11-19 07:36:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:36:45,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:45,750 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:45,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:45,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:36:45,967 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:45,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1769928389, now seen corresponding path program 1 times [2023-11-19 07:36:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817895507] [2023-11-19 07:36:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:45,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:45,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716147118] [2023-11-19 07:36:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:45,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:45,975 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:45,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 07:36:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:46,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:36:46,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:36:46,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:48,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:48,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817895507] [2023-11-19 07:36:48,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:48,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716147118] [2023-11-19 07:36:48,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716147118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:48,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:48,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 07:36:48,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451033927] [2023-11-19 07:36:48,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:48,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:36:48,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:36:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2023-11-19 07:36:48,529 INFO L87 Difference]: Start difference. First operand 287 states and 345 transitions. Second operand has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:49,562 INFO L93 Difference]: Finished difference Result 511 states and 592 transitions. [2023-11-19 07:36:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:36:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2023-11-19 07:36:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:49,567 INFO L225 Difference]: With dead ends: 511 [2023-11-19 07:36:49,567 INFO L226 Difference]: Without dead ends: 507 [2023-11-19 07:36:49,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2023-11-19 07:36:49,569 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 576 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:49,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 288 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:36:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-11-19 07:36:49,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 365. [2023-11-19 07:36:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 281 states have (on average 1.4448398576512456) internal successors, (406), 330 states have internal predecessors, (406), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:36:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 470 transitions. [2023-11-19 07:36:49,609 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 470 transitions. Word has length 68 [2023-11-19 07:36:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:49,609 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 470 transitions. [2023-11-19 07:36:49,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:49,610 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 470 transitions. [2023-11-19 07:36:49,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:36:49,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:49,611 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:49,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:49,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:36:49,824 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:49,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 966794850, now seen corresponding path program 1 times [2023-11-19 07:36:49,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:49,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216785629] [2023-11-19 07:36:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:49,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:49,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612618137] [2023-11-19 07:36:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:49,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:49,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:49,835 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:49,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 07:36:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:49,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:36:49,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:36:50,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:52,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:52,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216785629] [2023-11-19 07:36:52,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:52,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612618137] [2023-11-19 07:36:52,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612618137] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:52,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:52,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 07:36:52,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054382250] [2023-11-19 07:36:52,471 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:52,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:36:52,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:52,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:36:52,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-19 07:36:52,473 INFO L87 Difference]: Start difference. First operand 365 states and 470 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:53,020 INFO L93 Difference]: Finished difference Result 403 states and 495 transitions. [2023-11-19 07:36:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:36:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2023-11-19 07:36:53,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:53,023 INFO L225 Difference]: With dead ends: 403 [2023-11-19 07:36:53,023 INFO L226 Difference]: Without dead ends: 399 [2023-11-19 07:36:53,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=37, Invalid=94, Unknown=1, NotChecked=0, Total=132 [2023-11-19 07:36:53,025 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 179 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:53,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 408 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:36:53,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-19 07:36:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 361. [2023-11-19 07:36:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 281 states have (on average 1.405693950177936) internal successors, (395), 326 states have internal predecessors, (395), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:36:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 459 transitions. [2023-11-19 07:36:53,057 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 459 transitions. Word has length 69 [2023-11-19 07:36:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:53,058 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 459 transitions. [2023-11-19 07:36:53,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 459 transitions. [2023-11-19 07:36:53,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:36:53,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:53,059 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:53,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:53,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:36:53,275 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:53,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash -94130659, now seen corresponding path program 1 times [2023-11-19 07:36:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:53,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972246008] [2023-11-19 07:36:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:53,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:53,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914369885] [2023-11-19 07:36:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:53,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:53,288 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:53,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-19 07:36:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:53,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:36:53,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:36:53,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:54,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:54,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972246008] [2023-11-19 07:36:54,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:54,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914369885] [2023-11-19 07:36:54,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914369885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:54,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:54,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:36:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30285775] [2023-11-19 07:36:54,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:54,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:36:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:54,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:36:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:36:54,126 INFO L87 Difference]: Start difference. First operand 361 states and 459 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:55,475 INFO L93 Difference]: Finished difference Result 545 states and 664 transitions. [2023-11-19 07:36:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:36:55,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2023-11-19 07:36:55,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:55,479 INFO L225 Difference]: With dead ends: 545 [2023-11-19 07:36:55,480 INFO L226 Difference]: Without dead ends: 538 [2023-11-19 07:36:55,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:36:55,481 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 544 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:55,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 259 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:36:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-19 07:36:55,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 454. [2023-11-19 07:36:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 364 states have (on average 1.4532967032967032) internal successors, (529), 409 states have internal predecessors, (529), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:36:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 613 transitions. [2023-11-19 07:36:55,525 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 613 transitions. Word has length 70 [2023-11-19 07:36:55,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:55,526 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 613 transitions. [2023-11-19 07:36:55,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 613 transitions. [2023-11-19 07:36:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:36:55,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:55,530 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:55,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:55,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:36:55,738 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:55,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1376916932, now seen corresponding path program 1 times [2023-11-19 07:36:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:55,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931045830] [2023-11-19 07:36:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:55,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:55,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703087192] [2023-11-19 07:36:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:55,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:55,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:55,749 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:55,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-19 07:36:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:55,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:36:55,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:36:56,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:56,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:56,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931045830] [2023-11-19 07:36:56,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:56,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703087192] [2023-11-19 07:36:56,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703087192] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:56,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:56,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:36:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967804716] [2023-11-19 07:36:56,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:56,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:36:56,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:36:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:36:56,612 INFO L87 Difference]: Start difference. First operand 454 states and 613 transitions. Second operand has 9 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:58,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:58,173 INFO L93 Difference]: Finished difference Result 592 states and 748 transitions. [2023-11-19 07:36:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:36:58,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2023-11-19 07:36:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:58,178 INFO L225 Difference]: With dead ends: 592 [2023-11-19 07:36:58,178 INFO L226 Difference]: Without dead ends: 590 [2023-11-19 07:36:58,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:36:58,202 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 441 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:58,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 285 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 07:36:58,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-19 07:36:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 489. [2023-11-19 07:36:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 395 states have (on average 1.4481012658227848) internal successors, (572), 440 states have internal predecessors, (572), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-19 07:36:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 664 transitions. [2023-11-19 07:36:58,248 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 664 transitions. Word has length 71 [2023-11-19 07:36:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:58,249 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 664 transitions. [2023-11-19 07:36:58,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:36:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 664 transitions. [2023-11-19 07:36:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:36:58,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:58,252 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:58,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:58,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-19 07:36:58,474 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:36:58,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash -265248001, now seen corresponding path program 1 times [2023-11-19 07:36:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:58,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925804560] [2023-11-19 07:36:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:58,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144938287] [2023-11-19 07:36:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:58,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:58,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:58,485 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:58,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-19 07:36:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:58,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:36:58,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:36:59,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:36:59,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:59,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925804560] [2023-11-19 07:36:59,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:59,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144938287] [2023-11-19 07:36:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144938287] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:36:59,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:36:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:36:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815223641] [2023-11-19 07:36:59,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:36:59,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:36:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:36:59,554 INFO L87 Difference]: Start difference. First operand 489 states and 664 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 07:37:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:01,712 INFO L93 Difference]: Finished difference Result 663 states and 858 transitions. [2023-11-19 07:37:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:37:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 72 [2023-11-19 07:37:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:01,717 INFO L225 Difference]: With dead ends: 663 [2023-11-19 07:37:01,717 INFO L226 Difference]: Without dead ends: 630 [2023-11-19 07:37:01,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:37:01,719 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 461 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:01,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 218 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:37:01,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-19 07:37:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 541. [2023-11-19 07:37:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 445 states have (on average 1.449438202247191) internal successors, (645), 489 states have internal predecessors, (645), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-19 07:37:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 743 transitions. [2023-11-19 07:37:01,779 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 743 transitions. Word has length 72 [2023-11-19 07:37:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:01,780 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 743 transitions. [2023-11-19 07:37:01,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 07:37:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 743 transitions. [2023-11-19 07:37:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 07:37:01,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:01,781 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:01,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:02,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:02,003 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:37:02,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 367246630, now seen corresponding path program 1 times [2023-11-19 07:37:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656326435] [2023-11-19 07:37:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:02,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:02,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954264632] [2023-11-19 07:37:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:02,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:02,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:02,012 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:02,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-19 07:37:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:02,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 07:37:02,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:37:02,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 07:37:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656326435] [2023-11-19 07:37:03,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954264632] [2023-11-19 07:37:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954264632] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:03,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:37:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:37:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097509132] [2023-11-19 07:37:03,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:03,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:37:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:03,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:37:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:37:03,289 INFO L87 Difference]: Start difference. First operand 541 states and 743 transitions. Second operand has 15 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-19 07:37:07,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:07,422 INFO L93 Difference]: Finished difference Result 764 states and 964 transitions. [2023-11-19 07:37:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:37:07,423 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 73 [2023-11-19 07:37:07,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:07,428 INFO L225 Difference]: With dead ends: 764 [2023-11-19 07:37:07,428 INFO L226 Difference]: Without dead ends: 760 [2023-11-19 07:37:07,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:37:07,429 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 1442 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:07,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 427 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 07:37:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-11-19 07:37:07,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 602. [2023-11-19 07:37:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 502 states have (on average 1.4342629482071714) internal successors, (720), 545 states have internal predecessors, (720), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-19 07:37:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 828 transitions. [2023-11-19 07:37:07,493 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 828 transitions. Word has length 73 [2023-11-19 07:37:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:07,494 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 828 transitions. [2023-11-19 07:37:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-19 07:37:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 828 transitions. [2023-11-19 07:37:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:37:07,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:07,496 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:07,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:07,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:07,720 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:37:07,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash 876652123, now seen corresponding path program 1 times [2023-11-19 07:37:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:07,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572558130] [2023-11-19 07:37:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:07,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:07,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:07,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766601678] [2023-11-19 07:37:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:07,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:07,745 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:07,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-19 07:37:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:37:07,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:37:08,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:10,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:10,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572558130] [2023-11-19 07:37:10,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:10,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766601678] [2023-11-19 07:37:10,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766601678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:10,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:10,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 07:37:10,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079637859] [2023-11-19 07:37:10,431 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:10,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:10,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:10,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:10,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2023-11-19 07:37:10,432 INFO L87 Difference]: Start difference. First operand 602 states and 828 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-19 07:37:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:11,158 INFO L93 Difference]: Finished difference Result 918 states and 1257 transitions. [2023-11-19 07:37:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:11,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 79 [2023-11-19 07:37:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:11,170 INFO L225 Difference]: With dead ends: 918 [2023-11-19 07:37:11,170 INFO L226 Difference]: Without dead ends: 916 [2023-11-19 07:37:11,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2023-11-19 07:37:11,173 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 321 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:11,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 290 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:37:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-11-19 07:37:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 829. [2023-11-19 07:37:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 702 states have (on average 1.462962962962963) internal successors, (1027), 745 states have internal predecessors, (1027), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-19 07:37:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1189 transitions. [2023-11-19 07:37:11,278 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1189 transitions. Word has length 79 [2023-11-19 07:37:11,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:11,283 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1189 transitions. [2023-11-19 07:37:11,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-19 07:37:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1189 transitions. [2023-11-19 07:37:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:37:11,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:11,285 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:11,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:11,499 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:37:11,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1406412111, now seen corresponding path program 1 times [2023-11-19 07:37:11,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:11,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571691185] [2023-11-19 07:37:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:11,509 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:11,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752852443] [2023-11-19 07:37:11,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:11,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:11,511 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:11,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-19 07:37:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:37:11,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:37:11,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:12,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571691185] [2023-11-19 07:37:12,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752852443] [2023-11-19 07:37:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752852443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:12,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:12,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 07:37:12,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424378875] [2023-11-19 07:37:12,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:12,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:12,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:12,117 INFO L87 Difference]: Start difference. First operand 829 states and 1189 transitions. Second operand has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-19 07:37:12,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:12,527 INFO L93 Difference]: Finished difference Result 841 states and 1192 transitions. [2023-11-19 07:37:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:12,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 80 [2023-11-19 07:37:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:12,532 INFO L225 Difference]: With dead ends: 841 [2023-11-19 07:37:12,533 INFO L226 Difference]: Without dead ends: 835 [2023-11-19 07:37:12,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:12,534 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 270 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:12,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 285 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-11-19 07:37:12,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 696. [2023-11-19 07:37:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 588 states have (on average 1.3860544217687074) internal successors, (815), 625 states have internal predecessors, (815), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-19 07:37:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 951 transitions. [2023-11-19 07:37:12,612 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 951 transitions. Word has length 80 [2023-11-19 07:37:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:12,613 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 951 transitions. [2023-11-19 07:37:12,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-19 07:37:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 951 transitions. [2023-11-19 07:37:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:37:12,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:12,614 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:12,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:12,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:12,836 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:37:12,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1017301855, now seen corresponding path program 1 times [2023-11-19 07:37:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954839334] [2023-11-19 07:37:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:12,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:12,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:12,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84236559] [2023-11-19 07:37:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:12,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:12,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:12,847 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:12,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-19 07:37:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 07:37:12,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 07:37:13,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 07:37:14,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:14,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954839334] [2023-11-19 07:37:14,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:14,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84236559] [2023-11-19 07:37:14,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84236559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:14,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:37:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-19 07:37:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311332079] [2023-11-19 07:37:14,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:14,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:14,152 INFO L87 Difference]: Start difference. First operand 696 states and 951 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-19 07:37:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:16,723 INFO L93 Difference]: Finished difference Result 894 states and 1176 transitions. [2023-11-19 07:37:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:37:16,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 83 [2023-11-19 07:37:16,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:16,732 INFO L225 Difference]: With dead ends: 894 [2023-11-19 07:37:16,733 INFO L226 Difference]: Without dead ends: 892 [2023-11-19 07:37:16,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:37:16,734 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 571 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:16,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 194 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:37:16,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2023-11-19 07:37:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 803. [2023-11-19 07:37:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 687 states have (on average 1.3901018922852983) internal successors, (955), 723 states have internal predecessors, (955), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-19 07:37:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1109 transitions. [2023-11-19 07:37:16,830 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1109 transitions. Word has length 83 [2023-11-19 07:37:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:16,830 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1109 transitions. [2023-11-19 07:37:16,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-19 07:37:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1109 transitions. [2023-11-19 07:37:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 07:37:16,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:16,832 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:16,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:17,046 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-19 07:37:17,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1471586515, now seen corresponding path program 1 times [2023-11-19 07:37:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714958567] [2023-11-19 07:37:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:17,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:17,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949270824] [2023-11-19 07:37:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:17,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:17,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:17,055 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:17,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df545722-3ff9-4cf0-95e6-254371951893/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-19 07:37:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:17,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 07:37:17,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:37:17,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:37:18,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:18,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714958567] [2023-11-19 07:37:18,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:18,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949270824] [2023-11-19 07:37:18,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949270824] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:18,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:37:18,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:37:18,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099362570] [2023-11-19 07:37:18,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:18,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:37:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:37:18,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:37:18,115 INFO L87 Difference]: Start difference. First operand 803 states and 1109 transitions. Second operand has 15 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14)