./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/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_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3d3bea00f90884a75828a52041ade76894eb11b308d280406ab40770bedb299 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:47,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:47,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:48:47,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:47,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:47,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:47,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:47,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:47,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:47,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:47,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:47,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:47,397 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:47,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:47,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:47,400 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:47,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:47,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:47,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:47,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:47,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:47,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:47,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:48:47,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:47,405 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:47,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:47,406 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:47,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:47,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:47,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:47,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:47,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:47,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:47,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:47,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:47,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:47,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:47,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:47,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:47,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:47,413 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:47,413 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_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d3bea00f90884a75828a52041ade76894eb11b308d280406ab40770bedb299 [2023-11-19 07:48:47,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:47,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:47,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:47,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:47,788 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:47,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c [2023-11-19 07:48:50,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:51,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:51,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound20.c [2023-11-19 07:48:51,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/data/8ca028345/f7dc5ea55d364702b861398ca903c4f0/FLAGcc08b0065 [2023-11-19 07:48:51,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/data/8ca028345/f7dc5ea55d364702b861398ca903c4f0 [2023-11-19 07:48:51,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:51,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:51,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:51,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:51,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:51,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed0938b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51, skipping insertion in model container [2023-11-19 07:48:51,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,274 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:51,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:51,468 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:51,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:51,506 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:51,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51 WrapperNode [2023-11-19 07:48:51,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:51,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:51,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:51,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:51,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,550 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2023-11-19 07:48:51,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:51,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:51,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:51,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:51,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:51,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:51,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:51,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:51,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (1/1) ... [2023-11-19 07:48:51,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:51,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:51,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:51,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:48:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:48:51,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:51,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:52,102 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:52,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:52,113 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:48:52,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:52 BoogieIcfgContainer [2023-11-19 07:48:52,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:52,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:52,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:52,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:52,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:51" (1/3) ... [2023-11-19 07:48:52,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9da079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:52, skipping insertion in model container [2023-11-19 07:48:52,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:51" (2/3) ... [2023-11-19 07:48:52,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9da079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:52, skipping insertion in model container [2023-11-19 07:48:52,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:52" (3/3) ... [2023-11-19 07:48:52,128 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound20.c [2023-11-19 07:48:52,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:52,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-19 07:48:52,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:52,217 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;@f1f228e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:52,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-19 07:48:52,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:48:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:48:52,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:52,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:48:52,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:52,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2023-11-19 07:48:52,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:52,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354384842] [2023-11-19 07:48:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:52,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:52,479 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 07:48:52,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:52,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354384842] [2023-11-19 07:48:52,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354384842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:52,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:52,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136421098] [2023-11-19 07:48:52,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:52,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:52,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:52,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:52,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:52,532 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:48:52,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:52,589 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2023-11-19 07:48:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 07:48:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:52,603 INFO L225 Difference]: With dead ends: 164 [2023-11-19 07:48:52,604 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 07:48:52,609 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 07:48:52,614 INFO L413 NwaCegarLoop]: 93 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, 93 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 07:48:52,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 07:48:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-19 07:48:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.7619047619047619) internal successors, (74), 69 states have internal predecessors, (74), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:48:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2023-11-19 07:48:52,708 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 6 [2023-11-19 07:48:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:52,709 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2023-11-19 07:48:52,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:48:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2023-11-19 07:48:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:48:52,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:52,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:48:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:52,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:52,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2023-11-19 07:48:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:52,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838994668] [2023-11-19 07:48:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:52,861 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 07:48:52,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:52,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838994668] [2023-11-19 07:48:52,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838994668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:52,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123685867] [2023-11-19 07:48:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:52,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:52,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:52,866 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:48:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:52,934 INFO L93 Difference]: Finished difference Result 132 states and 144 transitions. [2023-11-19 07:48:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:48:52,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-19 07:48:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:52,936 INFO L225 Difference]: With dead ends: 132 [2023-11-19 07:48:52,936 INFO L226 Difference]: Without dead ends: 80 [2023-11-19 07:48:52,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 07:48:52,939 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 4 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:52,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 231 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:52,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-19 07:48:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-19 07:48:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:48:52,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2023-11-19 07:48:52,951 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 6 [2023-11-19 07:48:52,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:52,952 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2023-11-19 07:48:52,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:48:52,952 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2023-11-19 07:48:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:48:52,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:52,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:52,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:52,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:52,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:52,955 INFO L85 PathProgramCache]: Analyzing trace with hash 667309322, now seen corresponding path program 1 times [2023-11-19 07:48:52,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:52,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110923530] [2023-11-19 07:48:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:52,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:52,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:52,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744165164] [2023-11-19 07:48:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:52,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:53,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:53,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:48:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:53,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:53,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:48:53,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:53,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:53,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110923530] [2023-11-19 07:48:53,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:53,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744165164] [2023-11-19 07:48:53,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744165164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:53,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:53,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:53,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631666494] [2023-11-19 07:48:53,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:53,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:53,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:53,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:53,136 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:53,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:53,235 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2023-11-19 07:48:53,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:53,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-19 07:48:53,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:53,243 INFO L225 Difference]: With dead ends: 173 [2023-11-19 07:48:53,243 INFO L226 Difference]: Without dead ends: 119 [2023-11-19 07:48:53,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:53,246 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:53,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 137 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:53,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-19 07:48:53,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 103. [2023-11-19 07:48:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.65625) internal successors, (106), 91 states have internal predecessors, (106), 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 07:48:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2023-11-19 07:48:53,286 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 19 [2023-11-19 07:48:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:53,289 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2023-11-19 07:48:53,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2023-11-19 07:48:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:48:53,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:53,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:53,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:53,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:53,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:53,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1596807332, now seen corresponding path program 1 times [2023-11-19 07:48:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320693713] [2023-11-19 07:48:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:53,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416585285] [2023-11-19 07:48:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:53,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:53,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:53,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:48:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:53,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:48:53,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:53,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:53,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:53,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320693713] [2023-11-19 07:48:53,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:53,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416585285] [2023-11-19 07:48:53,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416585285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:53,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:53,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:53,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385328800] [2023-11-19 07:48:53,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:53,645 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:53,803 INFO L93 Difference]: Finished difference Result 103 states and 126 transitions. [2023-11-19 07:48:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:53,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-19 07:48:53,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:53,806 INFO L225 Difference]: With dead ends: 103 [2023-11-19 07:48:53,806 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 07:48:53,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 07:48:53,808 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 56 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:53,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 71 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 07:48:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 07:48:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.609375) internal successors, (103), 89 states have internal predecessors, (103), 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 07:48:53,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 123 transitions. [2023-11-19 07:48:53,829 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 123 transitions. Word has length 27 [2023-11-19 07:48:53,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:53,830 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 123 transitions. [2023-11-19 07:48:53,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:53,830 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2023-11-19 07:48:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:48:53,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:53,832 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:53,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:54,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:54,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:54,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2038581697, now seen corresponding path program 1 times [2023-11-19 07:48:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:54,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064835609] [2023-11-19 07:48:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:54,052 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:54,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154737994] [2023-11-19 07:48:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:54,054 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:54,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:48:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:54,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:48:54,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:54,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:54,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:54,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064835609] [2023-11-19 07:48:54,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:54,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154737994] [2023-11-19 07:48:54,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154737994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:54,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:54,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:54,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586856864] [2023-11-19 07:48:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:54,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:54,230 INFO L87 Difference]: Start difference. First operand 101 states and 123 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:54,318 INFO L93 Difference]: Finished difference Result 101 states and 123 transitions. [2023-11-19 07:48:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:48:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-19 07:48:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:54,320 INFO L225 Difference]: With dead ends: 101 [2023-11-19 07:48:54,320 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 07:48:54,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:48:54,326 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 68 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:54,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 205 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:54,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 07:48:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-19 07:48:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 64 states have (on average 1.5625) internal successors, (100), 87 states have internal predecessors, (100), 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 07:48:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 120 transitions. [2023-11-19 07:48:54,361 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 120 transitions. Word has length 28 [2023-11-19 07:48:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:54,362 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 120 transitions. [2023-11-19 07:48:54,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 120 transitions. [2023-11-19 07:48:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:48:54,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:54,364 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:54,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:54,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:54,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:54,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:54,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2038580191, now seen corresponding path program 1 times [2023-11-19 07:48:54,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:54,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204240172] [2023-11-19 07:48:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:54,601 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332759173] [2023-11-19 07:48:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:54,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:54,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:54,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:48:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:54,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:48:54,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:54,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:54,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:54,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204240172] [2023-11-19 07:48:54,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:54,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332759173] [2023-11-19 07:48:54,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332759173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:54,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:54,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:54,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362867098] [2023-11-19 07:48:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:54,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:54,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:54,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:54,707 INFO L87 Difference]: Start difference. First operand 99 states and 120 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:54,756 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2023-11-19 07:48:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:54,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-19 07:48:54,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:54,758 INFO L225 Difference]: With dead ends: 113 [2023-11-19 07:48:54,758 INFO L226 Difference]: Without dead ends: 112 [2023-11-19 07:48:54,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 07:48:54,760 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:54,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 133 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-19 07:48:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 99. [2023-11-19 07:48:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 64 states have (on average 1.546875) internal successors, (99), 87 states have internal predecessors, (99), 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 07:48:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2023-11-19 07:48:54,774 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 28 [2023-11-19 07:48:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:54,774 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2023-11-19 07:48:54,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2023-11-19 07:48:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 07:48:54,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:54,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:54,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:54,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:48:54,978 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:54,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1228476917, now seen corresponding path program 1 times [2023-11-19 07:48:54,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:54,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211736073] [2023-11-19 07:48:54,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:54,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:54,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386080046] [2023-11-19 07:48:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:54,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:54,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:54,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:55,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:48:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:55,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:48:55,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:55,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:55,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:55,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211736073] [2023-11-19 07:48:55,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:55,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386080046] [2023-11-19 07:48:55,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386080046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:55,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:55,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:55,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567599243] [2023-11-19 07:48:55,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:55,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:55,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:55,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:55,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:55,148 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:55,231 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2023-11-19 07:48:55,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:48:55,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-19 07:48:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:55,233 INFO L225 Difference]: With dead ends: 116 [2023-11-19 07:48:55,234 INFO L226 Difference]: Without dead ends: 107 [2023-11-19 07:48:55,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:48:55,235 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:55,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 344 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:55,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-19 07:48:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2023-11-19 07:48:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.492537313432836) internal successors, (100), 90 states have internal predecessors, (100), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:48:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2023-11-19 07:48:55,247 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 29 [2023-11-19 07:48:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:55,248 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2023-11-19 07:48:55,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2023-11-19 07:48:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:48:55,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:55,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 07:48:55,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:55,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:55,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:55,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash -549686313, now seen corresponding path program 1 times [2023-11-19 07:48:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:55,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618303282] [2023-11-19 07:48:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:55,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473014990] [2023-11-19 07:48:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:55,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:55,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:55,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:48:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:55,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:55,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:55,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:55,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618303282] [2023-11-19 07:48:55,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473014990] [2023-11-19 07:48:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473014990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:55,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:55,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:55,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345025935] [2023-11-19 07:48:55,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:55,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:55,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:55,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:55,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:55,597 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:55,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:55,658 INFO L93 Difference]: Finished difference Result 147 states and 168 transitions. [2023-11-19 07:48:55,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:55,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-19 07:48:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:55,660 INFO L225 Difference]: With dead ends: 147 [2023-11-19 07:48:55,660 INFO L226 Difference]: Without dead ends: 143 [2023-11-19 07:48:55,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 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 07:48:55,663 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 47 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:55,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-19 07:48:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2023-11-19 07:48:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 85 states have (on average 1.4941176470588236) internal successors, (127), 108 states have internal predecessors, (127), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:48:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2023-11-19 07:48:55,681 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 31 [2023-11-19 07:48:55,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:55,681 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2023-11-19 07:48:55,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2023-11-19 07:48:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:48:55,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:55,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:55,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:55,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:48:55,900 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:55,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:55,901 INFO L85 PathProgramCache]: Analyzing trace with hash 32433593, now seen corresponding path program 1 times [2023-11-19 07:48:55,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:55,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581183892] [2023-11-19 07:48:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:55,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:55,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:55,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281044509] [2023-11-19 07:48:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:55,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:55,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:55,916 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:55,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:48:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:55,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:55,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:56,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:56,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:56,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581183892] [2023-11-19 07:48:56,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:56,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281044509] [2023-11-19 07:48:56,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281044509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:56,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:56,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917104652] [2023-11-19 07:48:56,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:56,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:56,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:56,053 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:56,132 INFO L93 Difference]: Finished difference Result 139 states and 158 transitions. [2023-11-19 07:48:56,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:56,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-11-19 07:48:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:56,135 INFO L225 Difference]: With dead ends: 139 [2023-11-19 07:48:56,135 INFO L226 Difference]: Without dead ends: 138 [2023-11-19 07:48:56,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:56,136 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:56,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 97 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-19 07:48:56,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 123. [2023-11-19 07:48:56,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 85 states have (on average 1.4705882352941178) internal successors, (125), 108 states have internal predecessors, (125), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:48:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2023-11-19 07:48:56,152 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 33 [2023-11-19 07:48:56,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:56,152 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2023-11-19 07:48:56,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:56,153 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2023-11-19 07:48:56,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:48:56,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:56,154 INFO L195 NwaCegarLoop]: trace histogram [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 07:48:56,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:56,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:56,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:56,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:56,375 INFO L85 PathProgramCache]: Analyzing trace with hash 185732939, now seen corresponding path program 1 times [2023-11-19 07:48:56,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:56,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608417936] [2023-11-19 07:48:56,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:56,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:56,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:56,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476677980] [2023-11-19 07:48:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:56,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:56,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:56,390 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:56,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:48:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:56,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:48:56,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:56,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:56,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:56,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608417936] [2023-11-19 07:48:56,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476677980] [2023-11-19 07:48:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476677980] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:56,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:48:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-19 07:48:56,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383221841] [2023-11-19 07:48:56,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:56,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:48:56,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:48:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:48:56,633 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:48:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:56,833 INFO L93 Difference]: Finished difference Result 249 states and 300 transitions. [2023-11-19 07:48:56,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:48:56,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 33 [2023-11-19 07:48:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:56,836 INFO L225 Difference]: With dead ends: 249 [2023-11-19 07:48:56,836 INFO L226 Difference]: Without dead ends: 180 [2023-11-19 07:48:56,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:48:56,837 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 65 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:56,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 435 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-19 07:48:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2023-11-19 07:48:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 116 states have (on average 1.456896551724138) internal successors, (169), 139 states have internal predecessors, (169), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 205 transitions. [2023-11-19 07:48:56,865 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 205 transitions. Word has length 33 [2023-11-19 07:48:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:56,866 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 205 transitions. [2023-11-19 07:48:56,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:48:56,866 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 205 transitions. [2023-11-19 07:48:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:48:56,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:56,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:56,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:57,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:48:57,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:57,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:57,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1005441480, now seen corresponding path program 1 times [2023-11-19 07:48:57,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:57,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784233274] [2023-11-19 07:48:57,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:57,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:57,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:57,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713483437] [2023-11-19 07:48:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:57,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:57,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:57,096 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:57,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:48:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:57,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:48:57,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:57,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:57,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:57,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784233274] [2023-11-19 07:48:57,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:57,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713483437] [2023-11-19 07:48:57,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713483437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:57,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:57,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:57,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588564671] [2023-11-19 07:48:57,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:57,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:57,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:57,307 INFO L87 Difference]: Start difference. First operand 162 states and 205 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:57,461 INFO L93 Difference]: Finished difference Result 169 states and 210 transitions. [2023-11-19 07:48:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:57,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2023-11-19 07:48:57,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:57,464 INFO L225 Difference]: With dead ends: 169 [2023-11-19 07:48:57,464 INFO L226 Difference]: Without dead ends: 166 [2023-11-19 07:48:57,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 07:48:57,465 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 26 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:57,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 139 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-19 07:48:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2023-11-19 07:48:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 142 states have internal predecessors, (171), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2023-11-19 07:48:57,489 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 34 [2023-11-19 07:48:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:57,490 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2023-11-19 07:48:57,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:48:57,490 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2023-11-19 07:48:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:48:57,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:57,492 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:57,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:57,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:57,705 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:57,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1132558923, now seen corresponding path program 1 times [2023-11-19 07:48:57,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:57,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933873857] [2023-11-19 07:48:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:57,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:57,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:57,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998518946] [2023-11-19 07:48:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:57,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:57,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:57,721 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:57,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:48:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:57,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:57,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:48:57,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:57,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:57,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933873857] [2023-11-19 07:48:57,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:57,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998518946] [2023-11-19 07:48:57,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998518946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:57,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:57,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:57,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681201953] [2023-11-19 07:48:57,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:57,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:57,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:57,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:57,846 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:48:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:57,925 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2023-11-19 07:48:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:57,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-11-19 07:48:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:57,928 INFO L225 Difference]: With dead ends: 192 [2023-11-19 07:48:57,928 INFO L226 Difference]: Without dead ends: 182 [2023-11-19 07:48:57,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:57,930 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 72 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:57,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 152 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-19 07:48:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 174. [2023-11-19 07:48:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 130 states have (on average 1.353846153846154) internal successors, (176), 149 states have internal predecessors, (176), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:48:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2023-11-19 07:48:57,956 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 45 [2023-11-19 07:48:57,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:57,957 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2023-11-19 07:48:57,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:48:57,957 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2023-11-19 07:48:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 07:48:57,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:57,959 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:57,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:58,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:58,177 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:58,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash 749588304, now seen corresponding path program 1 times [2023-11-19 07:48:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:58,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579186854] [2023-11-19 07:48:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:58,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:58,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866797743] [2023-11-19 07:48:58,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:58,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:58,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:58,200 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:58,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:48:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:58,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:58,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:48:58,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:58,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:58,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579186854] [2023-11-19 07:48:58,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:58,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866797743] [2023-11-19 07:48:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866797743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:58,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-19 07:48:58,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046502834] [2023-11-19 07:48:58,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:58,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:58,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:58,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:58,376 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:48:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:58,466 INFO L93 Difference]: Finished difference Result 265 states and 322 transitions. [2023-11-19 07:48:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2023-11-19 07:48:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:58,469 INFO L225 Difference]: With dead ends: 265 [2023-11-19 07:48:58,469 INFO L226 Difference]: Without dead ends: 261 [2023-11-19 07:48:58,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:58,471 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 100 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:58,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 175 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:58,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-19 07:48:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 227. [2023-11-19 07:48:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 177 states have (on average 1.3728813559322033) internal successors, (243), 196 states have internal predecessors, (243), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 07:48:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 295 transitions. [2023-11-19 07:48:58,497 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 295 transitions. Word has length 46 [2023-11-19 07:48:58,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:58,497 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 295 transitions. [2023-11-19 07:48:58,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:48:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 295 transitions. [2023-11-19 07:48:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:48:58,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:58,499 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:58,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:58,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:48:58,719 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:58,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:58,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1118998551, now seen corresponding path program 1 times [2023-11-19 07:48:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135118054] [2023-11-19 07:48:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:58,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:58,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934343104] [2023-11-19 07:48:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:58,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:58,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:58,737 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:58,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:48:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:58,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:58,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:48:58,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:58,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:58,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135118054] [2023-11-19 07:48:58,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:58,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934343104] [2023-11-19 07:48:58,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934343104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:58,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:58,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:58,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343958605] [2023-11-19 07:48:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:58,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:58,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:58,855 INFO L87 Difference]: Start difference. First operand 227 states and 295 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:48:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:59,037 INFO L93 Difference]: Finished difference Result 242 states and 306 transitions. [2023-11-19 07:48:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:59,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2023-11-19 07:48:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:59,039 INFO L225 Difference]: With dead ends: 242 [2023-11-19 07:48:59,040 INFO L226 Difference]: Without dead ends: 225 [2023-11-19 07:48:59,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:59,041 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 49 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:59,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 135 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:48:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-19 07:48:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 212. [2023-11-19 07:48:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 164 states have (on average 1.396341463414634) internal successors, (229), 183 states have internal predecessors, (229), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:48:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 277 transitions. [2023-11-19 07:48:59,065 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 277 transitions. Word has length 50 [2023-11-19 07:48:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:59,066 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 277 transitions. [2023-11-19 07:48:59,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:48:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 277 transitions. [2023-11-19 07:48:59,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:48:59,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:59,067 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:59,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:59,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:48:59,289 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:59,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:59,290 INFO L85 PathProgramCache]: Analyzing trace with hash 287436800, now seen corresponding path program 1 times [2023-11-19 07:48:59,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:59,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246559038] [2023-11-19 07:48:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:59,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:59,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737703203] [2023-11-19 07:48:59,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:59,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:59,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:59,302 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:59,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:48:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:59,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:59,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:48:59,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:48:59,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:59,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246559038] [2023-11-19 07:48:59,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:59,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737703203] [2023-11-19 07:48:59,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737703203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:59,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:48:59,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:48:59,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325398145] [2023-11-19 07:48:59,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:59,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:59,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:59,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:59,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:59,498 INFO L87 Difference]: Start difference. First operand 212 states and 277 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:48:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:59,734 INFO L93 Difference]: Finished difference Result 353 states and 432 transitions. [2023-11-19 07:48:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:59,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 54 [2023-11-19 07:48:59,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:59,739 INFO L225 Difference]: With dead ends: 353 [2023-11-19 07:48:59,739 INFO L226 Difference]: Without dead ends: 351 [2023-11-19 07:48:59,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:59,742 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 228 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:59,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 215 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:48:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-19 07:48:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 274. [2023-11-19 07:48:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 217 states have (on average 1.4101382488479262) internal successors, (306), 236 states have internal predecessors, (306), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:48:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 372 transitions. [2023-11-19 07:48:59,775 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 372 transitions. Word has length 54 [2023-11-19 07:48:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:59,776 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 372 transitions. [2023-11-19 07:48:59,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:48:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 372 transitions. [2023-11-19 07:48:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:48:59,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:59,777 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:59,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:59,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:48:59,998 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:48:59,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:59,999 INFO L85 PathProgramCache]: Analyzing trace with hash 320559606, now seen corresponding path program 1 times [2023-11-19 07:48:59,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011943035] [2023-11-19 07:49:00,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:00,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:00,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519203836] [2023-11-19 07:49:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:00,032 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:00,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:49:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:00,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:49:00,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:49:00,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:49:00,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:00,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011943035] [2023-11-19 07:49:00,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:00,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519203836] [2023-11-19 07:49:00,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519203836] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:00,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:00,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-19 07:49:00,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538440064] [2023-11-19 07:49:00,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:00,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:49:00,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:00,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:49:00,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:49:00,352 INFO L87 Difference]: Start difference. First operand 274 states and 372 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:00,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:00,693 INFO L93 Difference]: Finished difference Result 321 states and 415 transitions. [2023-11-19 07:49:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:49:00,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 55 [2023-11-19 07:49:00,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:00,697 INFO L225 Difference]: With dead ends: 321 [2023-11-19 07:49:00,697 INFO L226 Difference]: Without dead ends: 315 [2023-11-19 07:49:00,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:49:00,699 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 127 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:00,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 549 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-19 07:49:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 297. [2023-11-19 07:49:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 238 states have (on average 1.3823529411764706) internal successors, (329), 257 states have internal predecessors, (329), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:49:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 395 transitions. [2023-11-19 07:49:00,729 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 395 transitions. Word has length 55 [2023-11-19 07:49:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:00,730 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 395 transitions. [2023-11-19 07:49:00,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 395 transitions. [2023-11-19 07:49:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:49:00,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:00,731 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:00,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:00,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:49:00,952 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:00,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash 770531943, now seen corresponding path program 1 times [2023-11-19 07:49:00,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:00,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367850348] [2023-11-19 07:49:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:00,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:00,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493020094] [2023-11-19 07:49:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:00,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:00,965 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:00,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:49:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:01,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:49:01,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:49:01,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:49:01,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367850348] [2023-11-19 07:49:01,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493020094] [2023-11-19 07:49:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493020094] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:01,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:01,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:49:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497282286] [2023-11-19 07:49:01,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:01,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:49:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:49:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:01,394 INFO L87 Difference]: Start difference. First operand 297 states and 395 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:02,118 INFO L93 Difference]: Finished difference Result 379 states and 486 transitions. [2023-11-19 07:49:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:49:02,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 60 [2023-11-19 07:49:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:02,122 INFO L225 Difference]: With dead ends: 379 [2023-11-19 07:49:02,122 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 07:49:02,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:49:02,124 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 303 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:02,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 201 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:49:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 07:49:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 321. [2023-11-19 07:49:02,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 262 states have (on average 1.3740458015267176) internal successors, (360), 281 states have internal predecessors, (360), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:49:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 426 transitions. [2023-11-19 07:49:02,170 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 426 transitions. Word has length 60 [2023-11-19 07:49:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:02,171 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 426 transitions. [2023-11-19 07:49:02,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 426 transitions. [2023-11-19 07:49:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:49:02,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:02,173 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1] [2023-11-19 07:49:02,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:02,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:49:02,393 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:02,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:02,394 INFO L85 PathProgramCache]: Analyzing trace with hash -966584528, now seen corresponding path program 1 times [2023-11-19 07:49:02,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:02,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421439406] [2023-11-19 07:49:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:02,407 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:02,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434725511] [2023-11-19 07:49:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:02,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:02,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:02,410 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:02,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:49:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:02,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:49:02,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:49:02,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:49:02,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:02,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421439406] [2023-11-19 07:49:02,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:02,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434725511] [2023-11-19 07:49:02,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434725511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:02,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:02,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-19 07:49:02,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981095271] [2023-11-19 07:49:02,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:02,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:49:02,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:49:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:49:02,749 INFO L87 Difference]: Start difference. First operand 321 states and 426 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:03,027 INFO L93 Difference]: Finished difference Result 509 states and 672 transitions. [2023-11-19 07:49:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:49:03,028 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 68 [2023-11-19 07:49:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:03,032 INFO L225 Difference]: With dead ends: 509 [2023-11-19 07:49:03,032 INFO L226 Difference]: Without dead ends: 359 [2023-11-19 07:49:03,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:49:03,034 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 74 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:03,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 423 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-19 07:49:03,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 345. [2023-11-19 07:49:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 282 states have (on average 1.3581560283687943) internal successors, (383), 301 states have internal predecessors, (383), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 07:49:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 455 transitions. [2023-11-19 07:49:03,076 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 455 transitions. Word has length 68 [2023-11-19 07:49:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:03,077 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 455 transitions. [2023-11-19 07:49:03,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:49:03,077 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 455 transitions. [2023-11-19 07:49:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:49:03,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:03,083 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 07:49:03,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:03,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:49:03,296 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:03,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:03,297 INFO L85 PathProgramCache]: Analyzing trace with hash -281646737, now seen corresponding path program 2 times [2023-11-19 07:49:03,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:03,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699518989] [2023-11-19 07:49:03,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:03,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:03,308 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:03,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758106258] [2023-11-19 07:49:03,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:49:03,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:03,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:03,310 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:03,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:49:03,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:49:03,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:49:03,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:03,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:03,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:03,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:03,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699518989] [2023-11-19 07:49:03,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:03,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758106258] [2023-11-19 07:49:03,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758106258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:03,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:03,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:49:03,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109456238] [2023-11-19 07:49:03,508 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:03,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:03,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:03,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:03,510 INFO L87 Difference]: Start difference. First operand 345 states and 455 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:03,681 INFO L93 Difference]: Finished difference Result 498 states and 640 transitions. [2023-11-19 07:49:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:03,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2023-11-19 07:49:03,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:03,686 INFO L225 Difference]: With dead ends: 498 [2023-11-19 07:49:03,686 INFO L226 Difference]: Without dead ends: 494 [2023-11-19 07:49:03,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:03,688 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 134 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:03,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 215 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-11-19 07:49:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 376. [2023-11-19 07:49:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 309 states have (on average 1.3365695792880259) internal successors, (413), 328 states have internal predecessors, (413), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 07:49:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 493 transitions. [2023-11-19 07:49:03,742 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 493 transitions. Word has length 72 [2023-11-19 07:49:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:03,742 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 493 transitions. [2023-11-19 07:49:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 493 transitions. [2023-11-19 07:49:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:49:03,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:03,744 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:03,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:03,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:03,960 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:03,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1910905065, now seen corresponding path program 1 times [2023-11-19 07:49:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:03,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909024501] [2023-11-19 07:49:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:03,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:03,972 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:03,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852309483] [2023-11-19 07:49:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:03,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:03,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:04,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:49:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:04,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:04,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-19 07:49:04,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:04,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:04,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909024501] [2023-11-19 07:49:04,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:04,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852309483] [2023-11-19 07:49:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852309483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:04,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:04,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:04,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086658216] [2023-11-19 07:49:04,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:04,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:04,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:04,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:04,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:04,055 INFO L87 Difference]: Start difference. First operand 376 states and 493 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:04,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:04,120 INFO L93 Difference]: Finished difference Result 376 states and 493 transitions. [2023-11-19 07:49:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:04,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2023-11-19 07:49:04,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:04,126 INFO L225 Difference]: With dead ends: 376 [2023-11-19 07:49:04,126 INFO L226 Difference]: Without dead ends: 375 [2023-11-19 07:49:04,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 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 07:49:04,128 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 4 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:04,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 118 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-19 07:49:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-11-19 07:49:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 309 states have (on average 1.3236245954692556) internal successors, (409), 327 states have internal predecessors, (409), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 07:49:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 489 transitions. [2023-11-19 07:49:04,180 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 489 transitions. Word has length 79 [2023-11-19 07:49:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:04,180 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 489 transitions. [2023-11-19 07:49:04,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 489 transitions. [2023-11-19 07:49:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:49:04,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:04,182 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:04,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:04,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:04,397 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:04,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:04,398 INFO L85 PathProgramCache]: Analyzing trace with hash -891485006, now seen corresponding path program 1 times [2023-11-19 07:49:04,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:04,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533709888] [2023-11-19 07:49:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:04,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:04,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:04,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605786022] [2023-11-19 07:49:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:04,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:04,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:04,411 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:04,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:49:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:04,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:49:04,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:04,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:05,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533709888] [2023-11-19 07:49:05,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:05,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605786022] [2023-11-19 07:49:05,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605786022] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:05,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-19 07:49:05,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918142860] [2023-11-19 07:49:05,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:05,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:49:05,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:05,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:49:05,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:49:05,385 INFO L87 Difference]: Start difference. First operand 375 states and 489 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-19 07:49:06,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:06,008 INFO L93 Difference]: Finished difference Result 574 states and 728 transitions. [2023-11-19 07:49:06,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:49:06,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 80 [2023-11-19 07:49:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:06,013 INFO L225 Difference]: With dead ends: 574 [2023-11-19 07:49:06,013 INFO L226 Difference]: Without dead ends: 502 [2023-11-19 07:49:06,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:49:06,014 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 274 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:06,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 446 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:49:06,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-11-19 07:49:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 342. [2023-11-19 07:49:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 279 states have (on average 1.3010752688172043) internal successors, (363), 296 states have internal predecessors, (363), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 07:49:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2023-11-19 07:49:06,073 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 80 [2023-11-19 07:49:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:06,074 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2023-11-19 07:49:06,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-19 07:49:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2023-11-19 07:49:06,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:49:06,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:06,076 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:06,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:06,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 07:49:06,296 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:06,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1866231285, now seen corresponding path program 1 times [2023-11-19 07:49:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667359407] [2023-11-19 07:49:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:06,309 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:06,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766016465] [2023-11-19 07:49:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:06,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:06,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:06,311 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:06,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:49:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:06,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:06,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-19 07:49:06,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:06,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:06,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667359407] [2023-11-19 07:49:06,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:06,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766016465] [2023-11-19 07:49:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766016465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:49:06,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483118504] [2023-11-19 07:49:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:06,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:06,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:06,591 INFO L87 Difference]: Start difference. First operand 342 states and 439 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:06,894 INFO L93 Difference]: Finished difference Result 374 states and 468 transitions. [2023-11-19 07:49:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-11-19 07:49:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:06,898 INFO L225 Difference]: With dead ends: 374 [2023-11-19 07:49:06,898 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 07:49:06,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:06,899 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 68 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:06,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 169 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:49:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 07:49:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 350. [2023-11-19 07:49:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 287 states have (on average 1.2926829268292683) internal successors, (371), 304 states have internal predecessors, (371), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 07:49:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 447 transitions. [2023-11-19 07:49:06,956 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 447 transitions. Word has length 81 [2023-11-19 07:49:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:06,957 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 447 transitions. [2023-11-19 07:49:06,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 447 transitions. [2023-11-19 07:49:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:49:06,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:06,958 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:06,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:07,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:49:07,179 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:07,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2018594860, now seen corresponding path program 1 times [2023-11-19 07:49:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203148380] [2023-11-19 07:49:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:07,191 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330404021] [2023-11-19 07:49:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:07,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:07,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:07,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:07,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:49:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:07,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:07,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-19 07:49:07,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:07,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:07,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203148380] [2023-11-19 07:49:07,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:07,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330404021] [2023-11-19 07:49:07,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330404021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:07,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:07,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:07,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199146841] [2023-11-19 07:49:07,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:07,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:49:07,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:07,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:49:07,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:07,401 INFO L87 Difference]: Start difference. First operand 350 states and 447 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:07,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:07,650 INFO L93 Difference]: Finished difference Result 359 states and 452 transitions. [2023-11-19 07:49:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:49:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 82 [2023-11-19 07:49:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:07,653 INFO L225 Difference]: With dead ends: 359 [2023-11-19 07:49:07,653 INFO L226 Difference]: Without dead ends: 357 [2023-11-19 07:49:07,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:07,655 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:07,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 118 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:49:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-19 07:49:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 352. [2023-11-19 07:49:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 289 states have (on average 1.2802768166089966) internal successors, (370), 306 states have internal predecessors, (370), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 07:49:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 446 transitions. [2023-11-19 07:49:07,715 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 446 transitions. Word has length 82 [2023-11-19 07:49:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:07,716 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 446 transitions. [2023-11-19 07:49:07,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 446 transitions. [2023-11-19 07:49:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 07:49:07,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:07,717 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:07,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:07,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:49:07,936 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:07,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:07,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1041574332, now seen corresponding path program 1 times [2023-11-19 07:49:07,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:07,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614483591] [2023-11-19 07:49:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:07,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:07,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:07,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821288611] [2023-11-19 07:49:07,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:07,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:07,984 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:08,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:49:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:08,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:49:08,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 07:49:08,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:49:08,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:08,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614483591] [2023-11-19 07:49:08,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:08,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821288611] [2023-11-19 07:49:08,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821288611] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:08,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-19 07:49:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231097252] [2023-11-19 07:49:08,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:08,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-19 07:49:08,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:08,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-19 07:49:08,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:49:08,414 INFO L87 Difference]: Start difference. First operand 352 states and 446 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-19 07:49:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:08,850 INFO L93 Difference]: Finished difference Result 418 states and 515 transitions. [2023-11-19 07:49:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-19 07:49:08,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 86 [2023-11-19 07:49:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:08,854 INFO L225 Difference]: With dead ends: 418 [2023-11-19 07:49:08,854 INFO L226 Difference]: Without dead ends: 406 [2023-11-19 07:49:08,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2023-11-19 07:49:08,856 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 132 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:08,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 618 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:08,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-19 07:49:08,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 384. [2023-11-19 07:49:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 316 states have (on average 1.259493670886076) internal successors, (398), 333 states have internal predecessors, (398), 41 states have call successors, (41), 9 states have call predecessors, (41), 9 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-19 07:49:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 480 transitions. [2023-11-19 07:49:08,916 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 480 transitions. Word has length 86 [2023-11-19 07:49:08,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:08,916 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 480 transitions. [2023-11-19 07:49:08,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-19 07:49:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 480 transitions. [2023-11-19 07:49:08,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:49:08,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:08,918 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:08,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:09,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:09,127 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:09,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:09,128 INFO L85 PathProgramCache]: Analyzing trace with hash 595065312, now seen corresponding path program 1 times [2023-11-19 07:49:09,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:09,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206940504] [2023-11-19 07:49:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:09,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:09,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756679760] [2023-11-19 07:49:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:09,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:09,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:09,142 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:09,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:49:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:09,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:49:09,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:09,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206940504] [2023-11-19 07:49:10,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756679760] [2023-11-19 07:49:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756679760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:10,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:49:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432145639] [2023-11-19 07:49:10,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:49:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:49:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:49:10,364 INFO L87 Difference]: Start difference. First operand 384 states and 480 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:10,832 INFO L93 Difference]: Finished difference Result 439 states and 539 transitions. [2023-11-19 07:49:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:49:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2023-11-19 07:49:10,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:10,836 INFO L225 Difference]: With dead ends: 439 [2023-11-19 07:49:10,836 INFO L226 Difference]: Without dead ends: 438 [2023-11-19 07:49:10,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:49:10,838 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 92 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:10,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 257 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:49:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-19 07:49:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 402. [2023-11-19 07:49:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 332 states have (on average 1.2620481927710843) internal successors, (419), 349 states have internal predecessors, (419), 43 states have call successors, (43), 9 states have call predecessors, (43), 9 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 07:49:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 505 transitions. [2023-11-19 07:49:10,902 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 505 transitions. Word has length 87 [2023-11-19 07:49:10,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:10,903 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 505 transitions. [2023-11-19 07:49:10,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 505 transitions. [2023-11-19 07:49:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:49:10,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:10,906 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:10,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:11,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:11,119 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:11,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1267155581, now seen corresponding path program 1 times [2023-11-19 07:49:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:11,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262172638] [2023-11-19 07:49:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:11,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:11,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985864370] [2023-11-19 07:49:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:11,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:11,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:11,132 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:11,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 07:49:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:49:11,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:11,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:12,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262172638] [2023-11-19 07:49:12,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:12,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985864370] [2023-11-19 07:49:12,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985864370] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:12,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:49:12,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338886174] [2023-11-19 07:49:12,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:12,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:49:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:49:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:49:12,115 INFO L87 Difference]: Start difference. First operand 402 states and 505 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:12,478 INFO L93 Difference]: Finished difference Result 420 states and 518 transitions. [2023-11-19 07:49:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:49:12,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2023-11-19 07:49:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:12,481 INFO L225 Difference]: With dead ends: 420 [2023-11-19 07:49:12,482 INFO L226 Difference]: Without dead ends: 419 [2023-11-19 07:49:12,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:49:12,483 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 44 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:12,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 228 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:49:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-19 07:49:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 402. [2023-11-19 07:49:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 332 states have (on average 1.2560240963855422) internal successors, (417), 349 states have internal predecessors, (417), 43 states have call successors, (43), 9 states have call predecessors, (43), 9 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 07:49:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 503 transitions. [2023-11-19 07:49:12,541 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 503 transitions. Word has length 88 [2023-11-19 07:49:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:12,541 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 503 transitions. [2023-11-19 07:49:12,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 503 transitions. [2023-11-19 07:49:12,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:49:12,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:12,543 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:12,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:12,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:49:12,763 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:12,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash 627117442, now seen corresponding path program 1 times [2023-11-19 07:49:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:12,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088929813] [2023-11-19 07:49:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:12,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:12,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120858005] [2023-11-19 07:49:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:12,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:12,784 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:12,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 07:49:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:12,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:12,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-19 07:49:12,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:12,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:12,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088929813] [2023-11-19 07:49:12,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:12,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120858005] [2023-11-19 07:49:12,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120858005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:12,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:12,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:49:12,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208701656] [2023-11-19 07:49:12,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:12,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:12,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:12,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:12,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:12,896 INFO L87 Difference]: Start difference. First operand 402 states and 503 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:13,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:13,248 INFO L93 Difference]: Finished difference Result 412 states and 510 transitions. [2023-11-19 07:49:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:13,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2023-11-19 07:49:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:13,251 INFO L225 Difference]: With dead ends: 412 [2023-11-19 07:49:13,252 INFO L226 Difference]: Without dead ends: 410 [2023-11-19 07:49:13,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:13,254 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 64 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:13,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 97 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:49:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-19 07:49:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 401. [2023-11-19 07:49:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 332 states have (on average 1.2319277108433735) internal successors, (409), 348 states have internal predecessors, (409), 43 states have call successors, (43), 9 states have call predecessors, (43), 9 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 07:49:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 495 transitions. [2023-11-19 07:49:13,310 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 495 transitions. Word has length 89 [2023-11-19 07:49:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:13,311 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 495 transitions. [2023-11-19 07:49:13,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:49:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 495 transitions. [2023-11-19 07:49:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:49:13,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:13,312 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:13,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:13,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:49:13,527 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:13,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2034195681, now seen corresponding path program 1 times [2023-11-19 07:49:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:13,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912711957] [2023-11-19 07:49:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:13,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:13,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565877872] [2023-11-19 07:49:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:13,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:13,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:13,567 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:13,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 07:49:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:13,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 07:49:13,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:14,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:49:19,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912711957] [2023-11-19 07:49:19,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565877872] [2023-11-19 07:49:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565877872] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:19,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:19,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-19 07:49:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223110628] [2023-11-19 07:49:19,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:19,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:49:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:49:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:49:19,841 INFO L87 Difference]: Start difference. First operand 401 states and 495 transitions. Second operand has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-19 07:49:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:28,318 INFO L93 Difference]: Finished difference Result 465 states and 556 transitions. [2023-11-19 07:49:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-19 07:49:28,319 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 90 [2023-11-19 07:49:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:28,324 INFO L225 Difference]: With dead ends: 465 [2023-11-19 07:49:28,324 INFO L226 Difference]: Without dead ends: 464 [2023-11-19 07:49:28,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=402, Invalid=858, Unknown=0, NotChecked=0, Total=1260 [2023-11-19 07:49:28,326 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 441 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:28,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 367 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-19 07:49:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-19 07:49:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 409. [2023-11-19 07:49:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 340 states have (on average 1.2411764705882353) internal successors, (422), 356 states have internal predecessors, (422), 43 states have call successors, (43), 9 states have call predecessors, (43), 9 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 07:49:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 508 transitions. [2023-11-19 07:49:28,390 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 508 transitions. Word has length 90 [2023-11-19 07:49:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:28,391 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 508 transitions. [2023-11-19 07:49:28,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-19 07:49:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 508 transitions. [2023-11-19 07:49:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:49:28,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:28,393 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-11-19 07:49:28,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-19 07:49:28,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:49:28,607 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-19 07:49:28,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash -861697330, now seen corresponding path program 3 times [2023-11-19 07:49:28,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:28,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47330307] [2023-11-19 07:49:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:28,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:28,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:28,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636415984] [2023-11-19 07:49:28,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:49:28,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:28,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:28,621 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:28,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558ff7ee-c8c3-4486-90dc-e29d8b2556ef/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-19 07:49:28,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-19 07:49:28,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:49:28,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:49:28,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 44 proven. 38 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-19 07:49:29,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:29,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:29,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47330307] [2023-11-19 07:49:29,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:29,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636415984] [2023-11-19 07:49:29,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636415984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:29,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:29,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:49:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131151595] [2023-11-19 07:49:29,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:29,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:49:29,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:49:29,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:49:29,363 INFO L87 Difference]: Start difference. First operand 409 states and 508 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:49:32,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:49:34,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:49:36,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:49:38,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:49:42,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:49:44,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []