./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/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_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Parts.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/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 64bit --witnessprinter.graph.data.programhash 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:17,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:18,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:37:18,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:18,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:18,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:18,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:18,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:18,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:18,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:18,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:18,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:18,092 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:18,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:18,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:18,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:18,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:18,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:18,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:18,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:18,098 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:37:18,099 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:18,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:18,100 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:18,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:18,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:18,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:18,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:18,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:18,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:18,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:18,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:18,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:18,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:18,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:18,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:18,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:18,107 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:18,107 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_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2023-11-19 07:37:18,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:18,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:18,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:18,507 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:18,508 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:18,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-numeric/Parts.c [2023-11-19 07:37:21,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:21,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:21,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/sv-benchmarks/c/termination-numeric/Parts.c [2023-11-19 07:37:21,881 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/data/6008aa50a/cf8bdcc5c4be4ff8b68b5b2e85d99c25/FLAG5227e89a7 [2023-11-19 07:37:21,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/data/6008aa50a/cf8bdcc5c4be4ff8b68b5b2e85d99c25 [2023-11-19 07:37:21,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:21,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:21,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:21,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:21,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:21,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:21" (1/1) ... [2023-11-19 07:37:21,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d28ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:21, skipping insertion in model container [2023-11-19 07:37:21,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:21" (1/1) ... [2023-11-19 07:37:21,940 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:22,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:22,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:22,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:22,134 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:22,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22 WrapperNode [2023-11-19 07:37:22,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:22,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:22,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:22,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:22,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,165 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-19 07:37:22,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:22,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:22,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:22,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:22,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:22,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:22,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:22,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:22,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (1/1) ... [2023-11-19 07:37:22,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:22,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:22,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2023-11-19 07:37:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2023-11-19 07:37:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:22,324 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:22,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:22,509 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:22,518 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:22,518 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:22,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:22 BoogieIcfgContainer [2023-11-19 07:37:22,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:22,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:22,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:22,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:22,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:21" (1/3) ... [2023-11-19 07:37:22,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14197f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:22, skipping insertion in model container [2023-11-19 07:37:22,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:22" (2/3) ... [2023-11-19 07:37:22,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14197f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:22, skipping insertion in model container [2023-11-19 07:37:22,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:22" (3/3) ... [2023-11-19 07:37:22,534 INFO L112 eAbstractionObserver]: Analyzing ICFG Parts.c [2023-11-19 07:37:22,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:22,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-19 07:37:22,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:22,621 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;@70efa27d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:22,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 07:37:22,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 41 states have internal predecessors, (50), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:37:22,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:22,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:22,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:22,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1511704369, now seen corresponding path program 1 times [2023-11-19 07:37:22,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912863797] [2023-11-19 07:37:22,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:22,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:22,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:22,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912863797] [2023-11-19 07:37:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912863797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:22,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:22,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:22,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038691010] [2023-11-19 07:37:22,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:22,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:22,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:22,868 INFO L87 Difference]: Start difference. First operand has 47 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 41 states have internal predecessors, (50), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:22,913 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2023-11-19 07:37:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:37:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:22,927 INFO L225 Difference]: With dead ends: 90 [2023-11-19 07:37:22,928 INFO L226 Difference]: Without dead ends: 43 [2023-11-19 07:37:22,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 07:37:22,939 INFO L413 NwaCegarLoop]: 56 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, 56 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 07:37:22,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-19 07:37:22,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-19 07:37:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.5) internal successors, (42), 37 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2023-11-19 07:37:22,994 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 9 [2023-11-19 07:37:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:22,995 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2023-11-19 07:37:22,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2023-11-19 07:37:22,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:37:22,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:22,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:22,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:22,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:22,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1512061861, now seen corresponding path program 1 times [2023-11-19 07:37:22,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:22,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804073243] [2023-11-19 07:37:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:23,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804073243] [2023-11-19 07:37:23,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804073243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:23,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:23,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233700712] [2023-11-19 07:37:23,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:23,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:23,083 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,150 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2023-11-19 07:37:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:37:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,152 INFO L225 Difference]: With dead ends: 83 [2023-11-19 07:37:23,153 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 07:37:23,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:37:23,156 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 22 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 114 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 07:37:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-19 07:37:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 38 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-11-19 07:37:23,168 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 9 [2023-11-19 07:37:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,168 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-11-19 07:37:23,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-11-19 07:37:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:37:23,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:23,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:23,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2059242201, now seen corresponding path program 1 times [2023-11-19 07:37:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386145248] [2023-11-19 07:37:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:23,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386145248] [2023-11-19 07:37:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386145248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:23,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273809528] [2023-11-19 07:37:23,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:23,303 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,333 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2023-11-19 07:37:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:23,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 07:37:23,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,337 INFO L225 Difference]: With dead ends: 46 [2023-11-19 07:37:23,337 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 07:37:23,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:23,339 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 07:37:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-11-19 07:37:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 37 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2023-11-19 07:37:23,352 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 12 [2023-11-19 07:37:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,353 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2023-11-19 07:37:23,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2023-11-19 07:37:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:37:23,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:23,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:23,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -588001161, now seen corresponding path program 1 times [2023-11-19 07:37:23,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960073298] [2023-11-19 07:37:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:23,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960073298] [2023-11-19 07:37:23,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960073298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664717370] [2023-11-19 07:37:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:23,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:23,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:23,477 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,568 INFO L93 Difference]: Finished difference Result 96 states and 116 transitions. [2023-11-19 07:37:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:23,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:37:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,574 INFO L225 Difference]: With dead ends: 96 [2023-11-19 07:37:23,574 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:37:23,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:23,577 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 173 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:37:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2023-11-19 07:37:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 42 states have internal predecessors, (47), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:37:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2023-11-19 07:37:23,591 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 13 [2023-11-19 07:37:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,591 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2023-11-19 07:37:23,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2023-11-19 07:37:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:37:23,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:23,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:23,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1053155758, now seen corresponding path program 1 times [2023-11-19 07:37:23,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65502325] [2023-11-19 07:37:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65502325] [2023-11-19 07:37:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65502325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:23,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:23,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338274982] [2023-11-19 07:37:23,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:23,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:23,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:23,726 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,788 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2023-11-19 07:37:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:23,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-19 07:37:23,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,798 INFO L225 Difference]: With dead ends: 49 [2023-11-19 07:37:23,798 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 07:37:23,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:37:23,800 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 120 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:23,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 07:37:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 07:37:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.393939393939394) internal successors, (46), 41 states have internal predecessors, (46), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:37:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-11-19 07:37:23,815 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 14 [2023-11-19 07:37:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,816 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-11-19 07:37:23,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-11-19 07:37:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:37:23,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:23,817 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:23,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1711909968, now seen corresponding path program 1 times [2023-11-19 07:37:23,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274713603] [2023-11-19 07:37:23,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:23,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274713603] [2023-11-19 07:37:23,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274713603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:23,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:23,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004240624] [2023-11-19 07:37:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:23,895 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,940 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2023-11-19 07:37:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:23,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-19 07:37:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,942 INFO L225 Difference]: With dead ends: 53 [2023-11-19 07:37:23,942 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:37:23,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:37:23,944 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 127 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:37:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 07:37:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:37:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-19 07:37:23,955 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 15 [2023-11-19 07:37:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,956 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-19 07:37:23,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-19 07:37:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:37:23,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:37:23,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:23,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1243311904, now seen corresponding path program 1 times [2023-11-19 07:37:23,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329494933] [2023-11-19 07:37:23,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:37:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329494933] [2023-11-19 07:37:24,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329494933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:24,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:24,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911854343] [2023-11-19 07:37:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:24,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:24,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:24,075 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:24,118 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2023-11-19 07:37:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-19 07:37:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:24,120 INFO L225 Difference]: With dead ends: 52 [2023-11-19 07:37:24,121 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 07:37:24,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:37:24,125 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:24,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 07:37:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 07:37:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 43 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:37:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2023-11-19 07:37:24,149 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 19 [2023-11-19 07:37:24,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:24,149 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2023-11-19 07:37:24,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2023-11-19 07:37:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:37:24,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:24,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:24,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:37:24,155 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:24,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash 112036748, now seen corresponding path program 1 times [2023-11-19 07:37:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422946930] [2023-11-19 07:37:24,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:37:24,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422946930] [2023-11-19 07:37:24,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422946930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:24,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:24,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:24,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074360063] [2023-11-19 07:37:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:24,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:24,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:24,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:24,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:24,278 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:24,324 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2023-11-19 07:37:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:24,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-19 07:37:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:24,327 INFO L225 Difference]: With dead ends: 70 [2023-11-19 07:37:24,327 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:37:24,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:37:24,330 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:24,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 126 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:37:24,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2023-11-19 07:37:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:37:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2023-11-19 07:37:24,366 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 20 [2023-11-19 07:37:24,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:24,367 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2023-11-19 07:37:24,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2023-11-19 07:37:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:37:24,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:24,371 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] [2023-11-19 07:37:24,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:37:24,372 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:24,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1929063812, now seen corresponding path program 1 times [2023-11-19 07:37:24,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767288224] [2023-11-19 07:37:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:37:24,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767288224] [2023-11-19 07:37:24,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767288224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:24,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:24,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:24,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378612159] [2023-11-19 07:37:24,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:24,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:24,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:24,444 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:24,489 INFO L93 Difference]: Finished difference Result 142 states and 169 transitions. [2023-11-19 07:37:24,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:24,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 07:37:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:24,491 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:37:24,491 INFO L226 Difference]: Without dead ends: 81 [2023-11-19 07:37:24,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:24,493 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:24,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 157 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:24,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-19 07:37:24,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2023-11-19 07:37:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 64 states have internal predecessors, (72), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:37:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2023-11-19 07:37:24,504 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 23 [2023-11-19 07:37:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:24,505 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2023-11-19 07:37:24,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2023-11-19 07:37:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:37:24,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:24,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:24,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:37:24,507 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:24,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1440891157, now seen corresponding path program 1 times [2023-11-19 07:37:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169376962] [2023-11-19 07:37:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:37:24,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169376962] [2023-11-19 07:37:24,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169376962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367090328] [2023-11-19 07:37:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:24,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:24,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:24,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:37:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:24,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:37:24,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:37:24,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367090328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:24,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:24,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-19 07:37:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236629086] [2023-11-19 07:37:24,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:24,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:37:24,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:24,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:37:24,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:24,895 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:25,017 INFO L93 Difference]: Finished difference Result 119 states and 146 transitions. [2023-11-19 07:37:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:25,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2023-11-19 07:37:25,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:25,021 INFO L225 Difference]: With dead ends: 119 [2023-11-19 07:37:25,022 INFO L226 Difference]: Without dead ends: 118 [2023-11-19 07:37:25,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:37:25,023 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:25,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 242 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:25,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-19 07:37:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 112. [2023-11-19 07:37:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:37:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2023-11-19 07:37:25,058 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 25 [2023-11-19 07:37:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:25,059 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2023-11-19 07:37:25,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2023-11-19 07:37:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:37:25,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:25,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:25,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:25,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:37:25,282 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:25,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1684798159, now seen corresponding path program 1 times [2023-11-19 07:37:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:25,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256988173] [2023-11-19 07:37:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:37:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:37:25,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256988173] [2023-11-19 07:37:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256988173] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022025680] [2023-11-19 07:37:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:25,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:25,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:25,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:37:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:25,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:37:25,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:25,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:37:25,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:25,769 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:37:25,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022025680] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:25,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:25,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2023-11-19 07:37:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184307186] [2023-11-19 07:37:25,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:25,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:37:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:37:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:37:25,775 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:37:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:25,920 INFO L93 Difference]: Finished difference Result 183 states and 218 transitions. [2023-11-19 07:37:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2023-11-19 07:37:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:25,926 INFO L225 Difference]: With dead ends: 183 [2023-11-19 07:37:25,927 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 07:37:25,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 63 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:37:25,929 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 35 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:25,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 261 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 07:37:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2023-11-19 07:37:25,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 94 states have internal predecessors, (107), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:37:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 133 transitions. [2023-11-19 07:37:25,954 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 133 transitions. Word has length 36 [2023-11-19 07:37:25,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:25,955 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 133 transitions. [2023-11-19 07:37:25,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:37:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 133 transitions. [2023-11-19 07:37:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 07:37:25,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:25,960 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:25,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:26,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:26,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:26,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1468566924, now seen corresponding path program 2 times [2023-11-19 07:37:26,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243269929] [2023-11-19 07:37:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:37:26,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243269929] [2023-11-19 07:37:26,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243269929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:26,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106317945] [2023-11-19 07:37:26,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:37:26,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:26,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:26,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:37:26,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:37:26,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:26,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:37:26,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:37:26,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:37:26,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106317945] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:26,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:26,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2023-11-19 07:37:26,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68144263] [2023-11-19 07:37:26,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:26,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-19 07:37:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:26,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-19 07:37:26,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:37:26,810 INFO L87 Difference]: Start difference. First operand 112 states and 133 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:37:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:28,007 INFO L93 Difference]: Finished difference Result 223 states and 271 transitions. [2023-11-19 07:37:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-19 07:37:28,008 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 46 [2023-11-19 07:37:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:28,010 INFO L225 Difference]: With dead ends: 223 [2023-11-19 07:37:28,010 INFO L226 Difference]: Without dead ends: 158 [2023-11-19 07:37:28,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=816, Invalid=3876, Unknown=0, NotChecked=0, Total=4692 [2023-11-19 07:37:28,014 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 232 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:28,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 565 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-19 07:37:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 90. [2023-11-19 07:37:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.2) internal successors, (84), 75 states have internal predecessors, (84), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:37:28,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2023-11-19 07:37:28,027 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 46 [2023-11-19 07:37:28,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:28,028 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2023-11-19 07:37:28,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:37:28,028 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2023-11-19 07:37:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:37:28,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:28,029 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:28,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:28,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:28,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:28,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash -885878660, now seen corresponding path program 1 times [2023-11-19 07:37:28,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:28,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151803618] [2023-11-19 07:37:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:28,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:37:28,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:28,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151803618] [2023-11-19 07:37:28,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151803618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:28,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:28,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:37:28,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516895670] [2023-11-19 07:37:28,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:28,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:28,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:28,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:28,436 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:37:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:28,554 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2023-11-19 07:37:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-11-19 07:37:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:28,556 INFO L225 Difference]: With dead ends: 150 [2023-11-19 07:37:28,557 INFO L226 Difference]: Without dead ends: 102 [2023-11-19 07:37:28,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:28,558 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:28,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 172 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-19 07:37:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2023-11-19 07:37:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.2) internal successors, (90), 79 states have internal predecessors, (90), 10 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-19 07:37:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 113 transitions. [2023-11-19 07:37:28,571 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 113 transitions. Word has length 49 [2023-11-19 07:37:28,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:28,571 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 113 transitions. [2023-11-19 07:37:28,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:37:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 113 transitions. [2023-11-19 07:37:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:37:28,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:28,573 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:28,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:37:28,573 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:28,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1103925596, now seen corresponding path program 1 times [2023-11-19 07:37:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:28,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522083899] [2023-11-19 07:37:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:28,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:37:28,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:28,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522083899] [2023-11-19 07:37:28,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522083899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427512748] [2023-11-19 07:37:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:28,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:28,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:28,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:37:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:28,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:37:28,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:37:28,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427512748] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:28,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:28,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-19 07:37:28,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313496760] [2023-11-19 07:37:28,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:28,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:37:28,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:37:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:37:28,997 INFO L87 Difference]: Start difference. First operand 96 states and 113 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:29,348 INFO L93 Difference]: Finished difference Result 163 states and 207 transitions. [2023-11-19 07:37:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:37:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 50 [2023-11-19 07:37:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:29,351 INFO L225 Difference]: With dead ends: 163 [2023-11-19 07:37:29,351 INFO L226 Difference]: Without dead ends: 161 [2023-11-19 07:37:29,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:37:29,352 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 107 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:29,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 232 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-19 07:37:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 142. [2023-11-19 07:37:29,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 116 states have internal predecessors, (137), 15 states have call successors, (15), 6 states have call predecessors, (15), 8 states have return successors, (21), 19 states have call predecessors, (21), 15 states have call successors, (21) [2023-11-19 07:37:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2023-11-19 07:37:29,373 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 50 [2023-11-19 07:37:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:29,373 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2023-11-19 07:37:29,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:37:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2023-11-19 07:37:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:37:29,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:29,375 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:29,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:29,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:37:29,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:29,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash 659198436, now seen corresponding path program 2 times [2023-11-19 07:37:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252009710] [2023-11-19 07:37:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:37:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:37:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:37:29,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:29,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252009710] [2023-11-19 07:37:29,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252009710] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35175432] [2023-11-19 07:37:29,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:37:29,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:29,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:29,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:29,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:37:29,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:37:29,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:29,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:37:29,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:37:29,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:37:30,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35175432] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:30,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:30,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-11-19 07:37:30,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389174998] [2023-11-19 07:37:30,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:30,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 07:37:30,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 07:37:30,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:37:30,123 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:37:30,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:30,387 INFO L93 Difference]: Finished difference Result 301 states and 383 transitions. [2023-11-19 07:37:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:37:30,388 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 55 [2023-11-19 07:37:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:30,391 INFO L225 Difference]: With dead ends: 301 [2023-11-19 07:37:30,391 INFO L226 Difference]: Without dead ends: 300 [2023-11-19 07:37:30,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:37:30,394 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 62 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:30,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 274 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-19 07:37:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 178. [2023-11-19 07:37:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 144 states have (on average 1.2013888888888888) internal successors, (173), 146 states have internal predecessors, (173), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2023-11-19 07:37:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 221 transitions. [2023-11-19 07:37:30,432 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 221 transitions. Word has length 55 [2023-11-19 07:37:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:30,433 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 221 transitions. [2023-11-19 07:37:30,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:37:30,433 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 221 transitions. [2023-11-19 07:37:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:37:30,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:30,435 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 07:37:30,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-19 07:37:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:37:30,648 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting partsErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:30,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1562834430, now seen corresponding path program 1 times [2023-11-19 07:37:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:30,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671713614] [2023-11-19 07:37:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:37:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 07:37:30,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:30,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671713614] [2023-11-19 07:37:30,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671713614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617382213] [2023-11-19 07:37:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:30,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:30,818 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:30,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:37:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:30,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:37:30,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 07:37:31,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617382213] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:31,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:31,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 14 [2023-11-19 07:37:31,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116305678] [2023-11-19 07:37:31,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:31,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:37:31,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:31,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:37:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:37:31,072 INFO L87 Difference]: Start difference. First operand 178 states and 221 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-19 07:37:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:31,588 INFO L93 Difference]: Finished difference Result 367 states and 496 transitions. [2023-11-19 07:37:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:37:31,589 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 63 [2023-11-19 07:37:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:31,592 INFO L225 Difference]: With dead ends: 367 [2023-11-19 07:37:31,592 INFO L226 Difference]: Without dead ends: 281 [2023-11-19 07:37:31,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:37:31,595 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 224 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:31,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 191 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-19 07:37:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 239. [2023-11-19 07:37:31,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 192 states have (on average 1.2239583333333333) internal successors, (235), 196 states have internal predecessors, (235), 29 states have call successors, (29), 10 states have call predecessors, (29), 13 states have return successors, (36), 32 states have call predecessors, (36), 29 states have call successors, (36) [2023-11-19 07:37:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 300 transitions. [2023-11-19 07:37:31,627 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 300 transitions. Word has length 63 [2023-11-19 07:37:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:31,627 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 300 transitions. [2023-11-19 07:37:31,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-19 07:37:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 300 transitions. [2023-11-19 07:37:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:37:31,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:31,629 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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 07:37:31,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:37:31,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:37:31,842 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:31,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:31,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1353103700, now seen corresponding path program 1 times [2023-11-19 07:37:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:31,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388520237] [2023-11-19 07:37:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:37:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:37:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:37:31,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:31,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388520237] [2023-11-19 07:37:31,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388520237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:31,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:31,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:31,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616306058] [2023-11-19 07:37:31,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:31,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:31,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:31,931 INFO L87 Difference]: Start difference. First operand 239 states and 300 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:31,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:31,997 INFO L93 Difference]: Finished difference Result 365 states and 488 transitions. [2023-11-19 07:37:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:31,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2023-11-19 07:37:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:32,000 INFO L225 Difference]: With dead ends: 365 [2023-11-19 07:37:32,000 INFO L226 Difference]: Without dead ends: 226 [2023-11-19 07:37:32,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:32,002 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:32,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 100 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:32,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-19 07:37:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2023-11-19 07:37:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 179 states have (on average 1.1955307262569832) internal successors, (214), 188 states have internal predecessors, (214), 29 states have call successors, (29), 10 states have call predecessors, (29), 13 states have return successors, (34), 27 states have call predecessors, (34), 29 states have call successors, (34) [2023-11-19 07:37:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2023-11-19 07:37:32,026 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 65 [2023-11-19 07:37:32,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:32,027 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2023-11-19 07:37:32,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2023-11-19 07:37:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:37:32,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:32,029 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 07:37:32,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:37:32,029 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:32,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash -998718612, now seen corresponding path program 2 times [2023-11-19 07:37:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764429843] [2023-11-19 07:37:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:37:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:37:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-19 07:37:32,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764429843] [2023-11-19 07:37:32,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764429843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:32,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410989065] [2023-11-19 07:37:32,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:37:32,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:32,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:32,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:32,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:37:32,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:37:32,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:32,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:37:32,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-11-19 07:37:32,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410989065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:32,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-19 07:37:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136524574] [2023-11-19 07:37:32,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:32,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:32,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:32,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:32,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:32,242 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:32,293 INFO L93 Difference]: Finished difference Result 258 states and 328 transitions. [2023-11-19 07:37:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:32,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2023-11-19 07:37:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:32,297 INFO L225 Difference]: With dead ends: 258 [2023-11-19 07:37:32,297 INFO L226 Difference]: Without dead ends: 257 [2023-11-19 07:37:32,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:32,298 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:32,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:32,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-19 07:37:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 244. [2023-11-19 07:37:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 193 states have (on average 1.1813471502590673) internal successors, (228), 201 states have internal predecessors, (228), 29 states have call successors, (29), 10 states have call predecessors, (29), 17 states have return successors, (49), 32 states have call predecessors, (49), 29 states have call successors, (49) [2023-11-19 07:37:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 306 transitions. [2023-11-19 07:37:32,325 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 306 transitions. Word has length 66 [2023-11-19 07:37:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:32,326 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 306 transitions. [2023-11-19 07:37:32,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:32,326 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 306 transitions. [2023-11-19 07:37:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:37:32,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:32,328 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 07:37:32,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:32,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:37:32,547 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:32,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:32,547 INFO L85 PathProgramCache]: Analyzing trace with hash -895505840, now seen corresponding path program 1 times [2023-11-19 07:37:32,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:32,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711424319] [2023-11-19 07:37:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:37:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:37:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-19 07:37:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:32,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711424319] [2023-11-19 07:37:32,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711424319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:32,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322460008] [2023-11-19 07:37:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:32,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:32,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:32,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:32,637 INFO L87 Difference]: Start difference. First operand 244 states and 306 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:32,696 INFO L93 Difference]: Finished difference Result 311 states and 412 transitions. [2023-11-19 07:37:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2023-11-19 07:37:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:32,700 INFO L225 Difference]: With dead ends: 311 [2023-11-19 07:37:32,700 INFO L226 Difference]: Without dead ends: 310 [2023-11-19 07:37:32,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:32,702 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:32,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:32,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-19 07:37:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 285. [2023-11-19 07:37:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 226 states have (on average 1.168141592920354) internal successors, (264), 232 states have internal predecessors, (264), 34 states have call successors, (34), 10 states have call predecessors, (34), 20 states have return successors, (73), 42 states have call predecessors, (73), 34 states have call successors, (73) [2023-11-19 07:37:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 371 transitions. [2023-11-19 07:37:32,732 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 371 transitions. Word has length 67 [2023-11-19 07:37:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:32,733 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 371 transitions. [2023-11-19 07:37:32,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 371 transitions. [2023-11-19 07:37:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 07:37:32,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:32,735 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 07:37:32,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:37:32,736 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:32,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1737493069, now seen corresponding path program 1 times [2023-11-19 07:37:32,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:32,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112912613] [2023-11-19 07:37:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:37:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:37:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-19 07:37:32,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:32,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112912613] [2023-11-19 07:37:32,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112912613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:32,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918758783] [2023-11-19 07:37:32,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:32,909 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:32,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:37:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:37:32,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-19 07:37:33,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-19 07:37:33,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918758783] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:33,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:33,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 12 [2023-11-19 07:37:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517711791] [2023-11-19 07:37:33,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:33,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:33,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:33,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:33,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:33,198 INFO L87 Difference]: Start difference. First operand 285 states and 371 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-19 07:37:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:33,434 INFO L93 Difference]: Finished difference Result 520 states and 720 transitions. [2023-11-19 07:37:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:37:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 86 [2023-11-19 07:37:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:33,438 INFO L225 Difference]: With dead ends: 520 [2023-11-19 07:37:33,438 INFO L226 Difference]: Without dead ends: 329 [2023-11-19 07:37:33,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:37:33,442 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 66 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:33,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 189 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:33,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-19 07:37:33,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 317. [2023-11-19 07:37:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 255 states have (on average 1.1372549019607843) internal successors, (290), 257 states have internal predecessors, (290), 37 states have call successors, (37), 16 states have call predecessors, (37), 21 states have return successors, (65), 43 states have call predecessors, (65), 37 states have call successors, (65) [2023-11-19 07:37:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 392 transitions. [2023-11-19 07:37:33,478 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 392 transitions. Word has length 86 [2023-11-19 07:37:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:33,478 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 392 transitions. [2023-11-19 07:37:33,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-19 07:37:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 392 transitions. [2023-11-19 07:37:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:37:33,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:33,481 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-19 07:37:33,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:33,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:33,699 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:33,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1269172710, now seen corresponding path program 2 times [2023-11-19 07:37:33,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:33,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120022050] [2023-11-19 07:37:33,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:33,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:37:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:37:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 63 proven. 32 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-19 07:37:33,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120022050] [2023-11-19 07:37:33,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120022050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848825295] [2023-11-19 07:37:33,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:37:33,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:33,836 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:33,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:37:33,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:37:33,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:33,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:37:33,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 07:37:33,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:33,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848825295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:33,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:33,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-11-19 07:37:33,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173044228] [2023-11-19 07:37:33,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:33,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:33,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:33,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:33,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:33,950 INFO L87 Difference]: Start difference. First operand 317 states and 392 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:37:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:34,068 INFO L93 Difference]: Finished difference Result 499 states and 625 transitions. [2023-11-19 07:37:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:34,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 97 [2023-11-19 07:37:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:34,071 INFO L225 Difference]: With dead ends: 499 [2023-11-19 07:37:34,071 INFO L226 Difference]: Without dead ends: 317 [2023-11-19 07:37:34,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:37:34,074 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:34,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 105 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-19 07:37:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-19 07:37:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 255 states have (on average 1.1333333333333333) internal successors, (289), 257 states have internal predecessors, (289), 37 states have call successors, (37), 16 states have call predecessors, (37), 21 states have return successors, (62), 43 states have call predecessors, (62), 37 states have call successors, (62) [2023-11-19 07:37:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2023-11-19 07:37:34,104 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 97 [2023-11-19 07:37:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:34,104 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2023-11-19 07:37:34,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:37:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2023-11-19 07:37:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 07:37:34,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:34,107 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:34,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:34,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:34,329 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:34,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1113697389, now seen corresponding path program 3 times [2023-11-19 07:37:34,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:34,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464713425] [2023-11-19 07:37:34,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:34,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:37:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:37:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:37:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 40 proven. 55 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-19 07:37:34,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:34,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464713425] [2023-11-19 07:37:34,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464713425] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544723407] [2023-11-19 07:37:34,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:37:34,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:34,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:34,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:34,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:37:34,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:37:34,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:34,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:37:34,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 151 proven. 37 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-19 07:37:34,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 40 proven. 55 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-19 07:37:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544723407] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:35,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 18 [2023-11-19 07:37:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184664758] [2023-11-19 07:37:35,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:35,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-19 07:37:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-19 07:37:35,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:37:35,004 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-19 07:37:35,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:35,196 INFO L93 Difference]: Finished difference Result 554 states and 684 transitions. [2023-11-19 07:37:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:37:35,197 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 117 [2023-11-19 07:37:35,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:35,200 INFO L225 Difference]: With dead ends: 554 [2023-11-19 07:37:35,200 INFO L226 Difference]: Without dead ends: 337 [2023-11-19 07:37:35,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:37:35,202 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 26 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:35,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 366 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:35,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-19 07:37:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 327. [2023-11-19 07:37:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 265 states have (on average 1.1245283018867924) internal successors, (298), 265 states have internal predecessors, (298), 37 states have call successors, (37), 16 states have call predecessors, (37), 21 states have return successors, (62), 45 states have call predecessors, (62), 37 states have call successors, (62) [2023-11-19 07:37:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 397 transitions. [2023-11-19 07:37:35,233 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 397 transitions. Word has length 117 [2023-11-19 07:37:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:35,233 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 397 transitions. [2023-11-19 07:37:35,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-19 07:37:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 397 transitions. [2023-11-19 07:37:35,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 07:37:35,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:35,236 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:35,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:35,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:37:35,460 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:35,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:35,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1177413314, now seen corresponding path program 3 times [2023-11-19 07:37:35,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:35,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756597403] [2023-11-19 07:37:35,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:35,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:37:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:37:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:37:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:37:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:37:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:37:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:37:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:37:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:37:36,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756597403] [2023-11-19 07:37:36,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756597403] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579763705] [2023-11-19 07:37:36,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:37:36,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:36,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:36,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:36,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:37:36,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-19 07:37:36,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:36,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:37:36,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:37:36,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:37:36,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579763705] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:36,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:36,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-11-19 07:37:36,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788571306] [2023-11-19 07:37:36,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-19 07:37:36,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:36,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-19 07:37:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-11-19 07:37:36,968 INFO L87 Difference]: Start difference. First operand 327 states and 397 transitions. Second operand has 46 states, 45 states have (on average 2.6444444444444444) internal successors, (119), 46 states have internal predecessors, (119), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:37:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:37,691 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2023-11-19 07:37:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-19 07:37:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.6444444444444444) internal successors, (119), 46 states have internal predecessors, (119), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 115 [2023-11-19 07:37:37,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:37,699 INFO L225 Difference]: With dead ends: 676 [2023-11-19 07:37:37,699 INFO L226 Difference]: Without dead ends: 675 [2023-11-19 07:37:37,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-11-19 07:37:37,702 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 162 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:37,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 341 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-11-19 07:37:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 399. [2023-11-19 07:37:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 325 states have (on average 1.1384615384615384) internal successors, (370), 325 states have internal predecessors, (370), 49 states have call successors, (49), 16 states have call predecessors, (49), 21 states have return successors, (74), 57 states have call predecessors, (74), 49 states have call successors, (74) [2023-11-19 07:37:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 493 transitions. [2023-11-19 07:37:37,751 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 493 transitions. Word has length 115 [2023-11-19 07:37:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:37,752 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 493 transitions. [2023-11-19 07:37:37,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.6444444444444444) internal successors, (119), 46 states have internal predecessors, (119), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:37:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 493 transitions. [2023-11-19 07:37:37,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 07:37:37,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:37,756 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:37,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:37,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:37:37,971 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:37,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash -429990542, now seen corresponding path program 4 times [2023-11-19 07:37:37,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:37,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6977561] [2023-11-19 07:37:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:37:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:37:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 39 proven. 64 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-19 07:37:38,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6977561] [2023-11-19 07:37:38,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6977561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:38,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17539719] [2023-11-19 07:37:38,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:37:38,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:38,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:37:38,367 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:37:38,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:38,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:37:38,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 101 proven. 94 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 07:37:38,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 101 proven. 95 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 07:37:39,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17539719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:39,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:39,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 14] total 27 [2023-11-19 07:37:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653101269] [2023-11-19 07:37:39,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:39,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 07:37:39,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 07:37:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:37:39,194 INFO L87 Difference]: Start difference. First operand 399 states and 493 transitions. Second operand has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 26 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2023-11-19 07:37:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:40,747 INFO L93 Difference]: Finished difference Result 779 states and 1036 transitions. [2023-11-19 07:37:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-19 07:37:40,747 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 26 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 127 [2023-11-19 07:37:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:40,752 INFO L225 Difference]: With dead ends: 779 [2023-11-19 07:37:40,752 INFO L226 Difference]: Without dead ends: 548 [2023-11-19 07:37:40,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 262 SyntacticMatches, 8 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=538, Invalid=3244, Unknown=0, NotChecked=0, Total=3782 [2023-11-19 07:37:40,757 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 526 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:40,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 395 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:37:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-11-19 07:37:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 517. [2023-11-19 07:37:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 422 states have (on average 1.1303317535545023) internal successors, (477), 419 states have internal predecessors, (477), 59 states have call successors, (59), 28 states have call predecessors, (59), 32 states have return successors, (130), 69 states have call predecessors, (130), 59 states have call successors, (130) [2023-11-19 07:37:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 666 transitions. [2023-11-19 07:37:40,814 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 666 transitions. Word has length 127 [2023-11-19 07:37:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:40,815 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 666 transitions. [2023-11-19 07:37:40,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 26 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2023-11-19 07:37:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 666 transitions. [2023-11-19 07:37:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-19 07:37:40,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:40,819 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 13, 9, 9, 8, 8, 8, 8, 8, 7, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:37:40,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:37:41,034 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:41,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1833760662, now seen corresponding path program 1 times [2023-11-19 07:37:41,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175738415] [2023-11-19 07:37:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:37:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:37:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-19 07:37:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-19 07:37:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-19 07:37:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 252 proven. 73 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-11-19 07:37:41,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:41,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175738415] [2023-11-19 07:37:41,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175738415] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:41,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765310411] [2023-11-19 07:37:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:41,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,277 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:37:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:37:41,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 501 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-19 07:37:41,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 252 proven. 73 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-11-19 07:37:41,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765310411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:41,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-19 07:37:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308098241] [2023-11-19 07:37:41,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:41,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:41,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:41,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:41,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:41,581 INFO L87 Difference]: Start difference. First operand 517 states and 666 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:37:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:41,695 INFO L93 Difference]: Finished difference Result 751 states and 1023 transitions. [2023-11-19 07:37:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 189 [2023-11-19 07:37:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:41,700 INFO L225 Difference]: With dead ends: 751 [2023-11-19 07:37:41,701 INFO L226 Difference]: Without dead ends: 447 [2023-11-19 07:37:41,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 406 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:41,706 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:41,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 125 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-19 07:37:41,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2023-11-19 07:37:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 364 states have (on average 1.1346153846153846) internal successors, (413), 363 states have internal predecessors, (413), 51 states have call successors, (51), 22 states have call predecessors, (51), 28 states have return successors, (100), 61 states have call predecessors, (100), 51 states have call successors, (100) [2023-11-19 07:37:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 564 transitions. [2023-11-19 07:37:41,772 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 564 transitions. Word has length 189 [2023-11-19 07:37:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:41,773 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 564 transitions. [2023-11-19 07:37:41,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:37:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 564 transitions. [2023-11-19 07:37:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-19 07:37:41,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:41,778 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 13, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:41,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:37:41,992 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting partsErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:41,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1917603509, now seen corresponding path program 1 times [2023-11-19 07:37:41,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131882626] [2023-11-19 07:37:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:37:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:37:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:37:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-19 07:37:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 125 proven. 162 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2023-11-19 07:37:42,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:42,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131882626] [2023-11-19 07:37:42,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131882626] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:42,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813729897] [2023-11-19 07:37:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:42,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:42,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,313 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:37:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 357 proven. 10 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2023-11-19 07:37:42,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:43,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 197 proven. 104 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2023-11-19 07:37:43,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813729897] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:43,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 29 [2023-11-19 07:37:43,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624462942] [2023-11-19 07:37:43,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:43,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-19 07:37:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-19 07:37:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2023-11-19 07:37:43,149 INFO L87 Difference]: Start difference. First operand 447 states and 564 transitions. Second operand has 29 states, 29 states have (on average 4.310344827586207) internal successors, (125), 26 states have internal predecessors, (125), 15 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2023-11-19 07:37:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:44,224 INFO L93 Difference]: Finished difference Result 1237 states and 1883 transitions. [2023-11-19 07:37:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-19 07:37:44,225 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.310344827586207) internal successors, (125), 26 states have internal predecessors, (125), 15 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) Word has length 212 [2023-11-19 07:37:44,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:44,234 INFO L225 Difference]: With dead ends: 1237 [2023-11-19 07:37:44,234 INFO L226 Difference]: Without dead ends: 964 [2023-11-19 07:37:44,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 442 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=371, Invalid=2821, Unknown=0, NotChecked=0, Total=3192 [2023-11-19 07:37:44,241 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 305 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:44,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 551 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:37:44,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2023-11-19 07:37:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 859. [2023-11-19 07:37:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 697 states have (on average 1.1420373027259685) internal successors, (796), 685 states have internal predecessors, (796), 96 states have call successors, (96), 38 states have call predecessors, (96), 62 states have return successors, (274), 135 states have call predecessors, (274), 96 states have call successors, (274) [2023-11-19 07:37:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1166 transitions. [2023-11-19 07:37:44,362 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1166 transitions. Word has length 212 [2023-11-19 07:37:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:44,363 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1166 transitions. [2023-11-19 07:37:44,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.310344827586207) internal successors, (125), 26 states have internal predecessors, (125), 15 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2023-11-19 07:37:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1166 transitions. [2023-11-19 07:37:44,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-19 07:37:44,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:44,368 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 13, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:44,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:44,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:37:44,590 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting partsErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:44,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:44,590 INFO L85 PathProgramCache]: Analyzing trace with hash -221398382, now seen corresponding path program 2 times [2023-11-19 07:37:44,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:44,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057937030] [2023-11-19 07:37:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:37:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:37:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:37:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-19 07:37:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 226 proven. 14 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-11-19 07:37:44,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:44,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057937030] [2023-11-19 07:37:44,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057937030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:44,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242366126] [2023-11-19 07:37:44,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:37:44,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:44,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:44,907 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:44,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:37:45,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:37:45,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:45,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:37:45,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 226 proven. 14 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-11-19 07:37:45,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 226 proven. 14 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-11-19 07:37:45,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242366126] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:45,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:45,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-19 07:37:45,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793303296] [2023-11-19 07:37:45,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:45,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:37:45,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:45,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:37:45,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:37:45,281 INFO L87 Difference]: Start difference. First operand 859 states and 1166 transitions. Second operand has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 9 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-19 07:37:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:45,565 INFO L93 Difference]: Finished difference Result 1266 states and 1768 transitions. [2023-11-19 07:37:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:37:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 9 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 214 [2023-11-19 07:37:45,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:45,576 INFO L225 Difference]: With dead ends: 1266 [2023-11-19 07:37:45,576 INFO L226 Difference]: Without dead ends: 1247 [2023-11-19 07:37:45,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 460 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:37:45,578 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 97 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:45,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 201 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:45,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2023-11-19 07:37:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1062. [2023-11-19 07:37:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 860 states have (on average 1.127906976744186) internal successors, (970), 839 states have internal predecessors, (970), 124 states have call successors, (124), 46 states have call predecessors, (124), 74 states have return successors, (297), 176 states have call predecessors, (297), 124 states have call successors, (297) [2023-11-19 07:37:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1391 transitions. [2023-11-19 07:37:45,686 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1391 transitions. Word has length 214 [2023-11-19 07:37:45,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:45,687 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1391 transitions. [2023-11-19 07:37:45,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 9 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-19 07:37:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1391 transitions. [2023-11-19 07:37:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-19 07:37:45,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:45,691 INFO L195 NwaCegarLoop]: trace histogram [21, 18, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:45,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:45,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:37:45,912 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting partsErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:45,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash 208217909, now seen corresponding path program 3 times [2023-11-19 07:37:45,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:45,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868730711] [2023-11-19 07:37:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:37:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:37:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:37:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-19 07:37:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 208 proven. 166 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2023-11-19 07:37:46,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868730711] [2023-11-19 07:37:46,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868730711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637091426] [2023-11-19 07:37:46,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:37:46,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:46,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:46,384 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:46,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:37:46,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:37:46,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:46,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:37:46,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 288 proven. 16 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2023-11-19 07:37:46,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 288 proven. 16 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2023-11-19 07:37:47,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637091426] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:47,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:47,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2023-11-19 07:37:47,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19230440] [2023-11-19 07:37:47,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:47,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-19 07:37:47,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-19 07:37:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2023-11-19 07:37:47,067 INFO L87 Difference]: Start difference. First operand 1062 states and 1391 transitions. Second operand has 36 states, 34 states have (on average 4.147058823529412) internal successors, (141), 30 states have internal predecessors, (141), 20 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2023-11-19 07:37:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:49,117 INFO L93 Difference]: Finished difference Result 2048 states and 2875 transitions. [2023-11-19 07:37:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-11-19 07:37:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 4.147058823529412) internal successors, (141), 30 states have internal predecessors, (141), 20 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) Word has length 219 [2023-11-19 07:37:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:49,129 INFO L225 Difference]: With dead ends: 2048 [2023-11-19 07:37:49,129 INFO L226 Difference]: Without dead ends: 1268 [2023-11-19 07:37:49,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2607 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1185, Invalid=8517, Unknown=0, NotChecked=0, Total=9702 [2023-11-19 07:37:49,141 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 801 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:49,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 391 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:37:49,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2023-11-19 07:37:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1148. [2023-11-19 07:37:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 931 states have (on average 1.1203007518796992) internal successors, (1043), 908 states have internal predecessors, (1043), 128 states have call successors, (128), 53 states have call predecessors, (128), 86 states have return successors, (288), 186 states have call predecessors, (288), 128 states have call successors, (288) [2023-11-19 07:37:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1459 transitions. [2023-11-19 07:37:49,289 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1459 transitions. Word has length 219 [2023-11-19 07:37:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:49,290 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1459 transitions. [2023-11-19 07:37:49,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 4.147058823529412) internal successors, (141), 30 states have internal predecessors, (141), 20 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2023-11-19 07:37:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1459 transitions. [2023-11-19 07:37:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-19 07:37:49,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:49,295 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:49,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:49,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:37:49,508 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:49,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:49,509 INFO L85 PathProgramCache]: Analyzing trace with hash -429023874, now seen corresponding path program 4 times [2023-11-19 07:37:49,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292685766] [2023-11-19 07:37:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:37:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:37:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:37:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:37:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:37:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:37:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:37:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:37:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:37:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-19 07:37:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-19 07:37:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-19 07:37:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-19 07:37:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-19 07:37:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-19 07:37:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-19 07:37:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-19 07:37:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-19 07:37:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-19 07:37:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-19 07:37:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-19 07:37:51,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:51,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292685766] [2023-11-19 07:37:51,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292685766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:51,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630808790] [2023-11-19 07:37:51,173 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:37:51,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:51,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,176 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:37:51,326 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:37:51,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:37:51,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-19 07:37:51,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-19 07:37:51,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-19 07:37:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630808790] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:53,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:53,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2023-11-19 07:37:53,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895869090] [2023-11-19 07:37:53,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:53,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-11-19 07:37:53,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-11-19 07:37:53,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-11-19 07:37:53,734 INFO L87 Difference]: Start difference. First operand 1148 states and 1459 transitions. Second operand has 94 states, 93 states have (on average 2.5698924731182795) internal successors, (239), 94 states have internal predecessors, (239), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-19 07:37:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:56,299 INFO L93 Difference]: Finished difference Result 2995 states and 4367 transitions. [2023-11-19 07:37:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-19 07:37:56,300 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.5698924731182795) internal successors, (239), 94 states have internal predecessors, (239), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 235 [2023-11-19 07:37:56,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:56,324 INFO L225 Difference]: With dead ends: 2995 [2023-11-19 07:37:56,324 INFO L226 Difference]: Without dead ends: 2994 [2023-11-19 07:37:56,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-11-19 07:37:56,333 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 513 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:56,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 362 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:56,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2023-11-19 07:37:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1292. [2023-11-19 07:37:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1051 states have (on average 1.1294005708848716) internal successors, (1187), 1028 states have internal predecessors, (1187), 152 states have call successors, (152), 53 states have call predecessors, (152), 86 states have return successors, (312), 210 states have call predecessors, (312), 152 states have call successors, (312) [2023-11-19 07:37:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1651 transitions. [2023-11-19 07:37:56,554 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1651 transitions. Word has length 235 [2023-11-19 07:37:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:56,555 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1651 transitions. [2023-11-19 07:37:56,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.5698924731182795) internal successors, (239), 94 states have internal predecessors, (239), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-19 07:37:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1651 transitions. [2023-11-19 07:37:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-19 07:37:56,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:56,560 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:56,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:56,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-19 07:37:56,782 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:56,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1230563424, now seen corresponding path program 1 times [2023-11-19 07:37:56,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:56,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485059623] [2023-11-19 07:37:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:37:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:37:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:37:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:37:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-19 07:37:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-19 07:37:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 322 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-11-19 07:37:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485059623] [2023-11-19 07:37:57,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485059623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247567675] [2023-11-19 07:37:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:57,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:57,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:57,388 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:57,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:37:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:57,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:37:57,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 412 proven. 36 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-11-19 07:37:57,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 322 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-11-19 07:37:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247567675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:58,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:58,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 30 [2023-11-19 07:37:58,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225428264] [2023-11-19 07:37:58,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:58,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-19 07:37:58,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-19 07:37:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:37:58,418 INFO L87 Difference]: Start difference. First operand 1292 states and 1651 transitions. Second operand has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 28 states have internal predecessors, (122), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-19 07:37:59,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:59,421 INFO L93 Difference]: Finished difference Result 2172 states and 2929 transitions. [2023-11-19 07:37:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-19 07:37:59,422 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 28 states have internal predecessors, (122), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) Word has length 235 [2023-11-19 07:37:59,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:59,431 INFO L225 Difference]: With dead ends: 2172 [2023-11-19 07:37:59,431 INFO L226 Difference]: Without dead ends: 1298 [2023-11-19 07:37:59,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 489 SyntacticMatches, 14 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2023-11-19 07:37:59,439 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 246 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:59,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 426 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:37:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2023-11-19 07:37:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1197. [2023-11-19 07:37:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 969 states have (on average 1.1166150670794635) internal successors, (1082), 959 states have internal predecessors, (1082), 148 states have call successors, (148), 53 states have call predecessors, (148), 77 states have return successors, (252), 184 states have call predecessors, (252), 148 states have call successors, (252) [2023-11-19 07:37:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1482 transitions. [2023-11-19 07:37:59,590 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1482 transitions. Word has length 235 [2023-11-19 07:37:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:59,591 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1482 transitions. [2023-11-19 07:37:59,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 28 states have internal predecessors, (122), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-19 07:37:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1482 transitions. [2023-11-19 07:37:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-11-19 07:37:59,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:59,597 INFO L195 NwaCegarLoop]: trace histogram [28, 25, 18, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:59,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:59,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:59,819 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:37:59,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:59,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1826328867, now seen corresponding path program 2 times [2023-11-19 07:37:59,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:59,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968083089] [2023-11-19 07:37:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:59,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:38:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:38:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:38:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:38:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:38:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:38:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:38:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:38:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-19 07:38:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-19 07:38:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-19 07:38:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-19 07:38:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 403 proven. 220 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2023-11-19 07:38:00,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968083089] [2023-11-19 07:38:00,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968083089] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:38:00,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787847301] [2023-11-19 07:38:00,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:38:00,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:00,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:00,425 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:00,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:38:00,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:38:00,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:38:00,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:38:00,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 1135 proven. 16 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2023-11-19 07:38:00,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:38:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 403 proven. 220 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2023-11-19 07:38:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787847301] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:38:01,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:38:01,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 29 [2023-11-19 07:38:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176198307] [2023-11-19 07:38:01,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:38:01,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-19 07:38:01,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:01,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-19 07:38:01,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2023-11-19 07:38:01,343 INFO L87 Difference]: Start difference. First operand 1197 states and 1482 transitions. Second operand has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 25 states have internal predecessors, (120), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2023-11-19 07:38:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:02,286 INFO L93 Difference]: Finished difference Result 1690 states and 2100 transitions. [2023-11-19 07:38:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:38:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 25 states have internal predecessors, (120), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) Word has length 286 [2023-11-19 07:38:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:02,297 INFO L225 Difference]: With dead ends: 1690 [2023-11-19 07:38:02,297 INFO L226 Difference]: Without dead ends: 1255 [2023-11-19 07:38:02,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 600 SyntacticMatches, 15 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=1712, Unknown=0, NotChecked=0, Total=1980 [2023-11-19 07:38:02,302 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 229 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:02,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 466 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:38:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-11-19 07:38:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1225. [2023-11-19 07:38:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 993 states have (on average 1.1168177240684793) internal successors, (1109), 982 states have internal predecessors, (1109), 149 states have call successors, (149), 55 states have call predecessors, (149), 80 states have return successors, (249), 187 states have call predecessors, (249), 149 states have call successors, (249) [2023-11-19 07:38:02,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1507 transitions. [2023-11-19 07:38:02,472 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1507 transitions. Word has length 286 [2023-11-19 07:38:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:02,473 INFO L495 AbstractCegarLoop]: Abstraction has 1225 states and 1507 transitions. [2023-11-19 07:38:02,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 25 states have internal predecessors, (120), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2023-11-19 07:38:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1507 transitions. [2023-11-19 07:38:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-19 07:38:02,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:02,477 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:02,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:02,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:02,698 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:38:02,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1163012931, now seen corresponding path program 3 times [2023-11-19 07:38:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360704316] [2023-11-19 07:38:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:38:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:38:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:38:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:38:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:38:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:38:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:38:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:38:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-19 07:38:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-19 07:38:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 294 proven. 10 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-11-19 07:38:03,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:03,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360704316] [2023-11-19 07:38:03,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360704316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:38:03,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329360139] [2023-11-19 07:38:03,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:38:03,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:03,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:03,071 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:03,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:38:03,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-19 07:38:03,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:38:03,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:38:03,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:03,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 270 proven. 10 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2023-11-19 07:38:03,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:38:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 270 proven. 10 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2023-11-19 07:38:03,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329360139] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:38:03,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:38:03,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 11 [2023-11-19 07:38:03,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227851691] [2023-11-19 07:38:03,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:38:03,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:38:03,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:03,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:38:03,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:38:03,790 INFO L87 Difference]: Start difference. First operand 1225 states and 1507 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-19 07:38:04,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:04,028 INFO L93 Difference]: Finished difference Result 1363 states and 1723 transitions. [2023-11-19 07:38:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:38:04,029 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) Word has length 256 [2023-11-19 07:38:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:04,038 INFO L225 Difference]: With dead ends: 1363 [2023-11-19 07:38:04,038 INFO L226 Difference]: Without dead ends: 1362 [2023-11-19 07:38:04,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 551 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:38:04,040 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 24 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:04,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 213 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:38:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2023-11-19 07:38:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1268. [2023-11-19 07:38:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1025 states have (on average 1.102439024390244) internal successors, (1130), 1017 states have internal predecessors, (1130), 155 states have call successors, (155), 55 states have call predecessors, (155), 85 states have return successors, (285), 195 states have call predecessors, (285), 155 states have call successors, (285) [2023-11-19 07:38:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1570 transitions. [2023-11-19 07:38:04,175 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1570 transitions. Word has length 256 [2023-11-19 07:38:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:04,176 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1570 transitions. [2023-11-19 07:38:04,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-19 07:38:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1570 transitions. [2023-11-19 07:38:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-19 07:38:04,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:04,180 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:04,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:04,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-19 07:38:04,394 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:38:04,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1693662433, now seen corresponding path program 2 times [2023-11-19 07:38:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:04,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915408392] [2023-11-19 07:38:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:38:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:38:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:38:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:38:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:38:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:38:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:38:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:38:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-19 07:38:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-19 07:38:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:38:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:38:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 298 proven. 12 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-11-19 07:38:04,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:04,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915408392] [2023-11-19 07:38:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915408392] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:38:04,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952574873] [2023-11-19 07:38:04,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:38:04,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:04,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:04,732 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:04,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:38:04,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:38:04,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:38:04,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:38:04,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 298 proven. 12 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-11-19 07:38:04,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:38:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 312 proven. 12 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2023-11-19 07:38:05,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952574873] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:38:05,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:38:05,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 11 [2023-11-19 07:38:05,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830769435] [2023-11-19 07:38:05,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:38:05,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:38:05,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:38:05,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:38:05,426 INFO L87 Difference]: Start difference. First operand 1268 states and 1570 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:38:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:05,582 INFO L93 Difference]: Finished difference Result 1507 states and 1929 transitions. [2023-11-19 07:38:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:38:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) Word has length 257 [2023-11-19 07:38:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:05,593 INFO L225 Difference]: With dead ends: 1507 [2023-11-19 07:38:05,594 INFO L226 Difference]: Without dead ends: 1506 [2023-11-19 07:38:05,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 552 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:38:05,599 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:05,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 199 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:38:05,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2023-11-19 07:38:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1413. [2023-11-19 07:38:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1147 states have (on average 1.0915431560592852) internal successors, (1252), 1125 states have internal predecessors, (1252), 167 states have call successors, (167), 55 states have call predecessors, (167), 96 states have return successors, (369), 232 states have call predecessors, (369), 167 states have call successors, (369) [2023-11-19 07:38:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1788 transitions. [2023-11-19 07:38:05,740 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1788 transitions. Word has length 257 [2023-11-19 07:38:05,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:05,742 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1788 transitions. [2023-11-19 07:38:05,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:38:05,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1788 transitions. [2023-11-19 07:38:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-19 07:38:05,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:05,746 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 19, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:05,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2374ea5-103c-4ecc-bd08-2f29fe4b97e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0