./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.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_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/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_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/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_4ba27afa-5c79-489c-9d64-4246349ddc12/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 1c50dd7e64abcc7a7eef6ea31e37156afb1e4322422284686cac6e6613b192c7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:09,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:09,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:34:09,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:09,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:09,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:09,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:09,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:09,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:09,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:09,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:09,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:09,585 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:09,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:09,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:09,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:09,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:09,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:09,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:09,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:09,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:09,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:09,593 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:34:09,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:09,594 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:09,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:09,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:09,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:09,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:09,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:09,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:09,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:09,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:09,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:34:09,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:09,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:09,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:09,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:34:09,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:09,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:09,603 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:09,603 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_4ba27afa-5c79-489c-9d64-4246349ddc12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c50dd7e64abcc7a7eef6ea31e37156afb1e4322422284686cac6e6613b192c7 [2023-11-19 07:34:09,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:09,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:09,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:09,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:09,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:09,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c [2023-11-19 07:34:13,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:13,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:13,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c [2023-11-19 07:34:13,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/data/fd08c3bf5/6b0bb39e50534f5dbbd2b36db2951f3a/FLAG0a27270ec [2023-11-19 07:34:13,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/data/fd08c3bf5/6b0bb39e50534f5dbbd2b36db2951f3a [2023-11-19 07:34:13,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:13,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:13,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:13,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:13,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:13,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7bdf5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13, skipping insertion in model container [2023-11-19 07:34:13,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,451 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:13,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:13,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:13,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:13,673 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:13,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13 WrapperNode [2023-11-19 07:34:13,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:13,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:13,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:13,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:13,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,726 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 135 [2023-11-19 07:34:13,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:13,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:13,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:13,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:13,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:13,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:13,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:13,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:13,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (1/1) ... [2023-11-19 07:34:13,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:13,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:13,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:13,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:34:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:34:13,928 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:13,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:14,598 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:14,611 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:14,612 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:34:14,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:14 BoogieIcfgContainer [2023-11-19 07:34:14,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:14,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:14,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:14,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:14,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:13" (1/3) ... [2023-11-19 07:34:14,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8718e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:14, skipping insertion in model container [2023-11-19 07:34:14,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13" (2/3) ... [2023-11-19 07:34:14,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8718e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:14, skipping insertion in model container [2023-11-19 07:34:14,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:14" (3/3) ... [2023-11-19 07:34:14,633 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound10.c [2023-11-19 07:34:14,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:14,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-11-19 07:34:14,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:14,732 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;@763f65d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:14,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-19 07:34:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 101 states have (on average 1.900990099009901) internal successors, (192), 187 states have internal predecessors, (192), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:34:14,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:14,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:34:14,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:14,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash 889512265, now seen corresponding path program 1 times [2023-11-19 07:34:14,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:14,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948677327] [2023-11-19 07:34:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:14,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,946 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 07:34:14,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:14,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948677327] [2023-11-19 07:34:14,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948677327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:14,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:14,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:14,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267026966] [2023-11-19 07:34:14,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:14,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:34:14,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:14,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:34:14,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:34:15,000 INFO L87 Difference]: Start difference. First operand has 192 states, 101 states have (on average 1.900990099009901) internal successors, (192), 187 states have internal predecessors, (192), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 07:34:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:15,047 INFO L93 Difference]: Finished difference Result 367 states and 394 transitions. [2023-11-19 07:34:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:34:15,050 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 07:34:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:15,059 INFO L225 Difference]: With dead ends: 367 [2023-11-19 07:34:15,059 INFO L226 Difference]: Without dead ends: 172 [2023-11-19 07:34:15,063 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 07:34:15,067 INFO L413 NwaCegarLoop]: 181 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, 181 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 07:34:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-19 07:34:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-11-19 07:34:15,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 96 states have (on average 1.7708333333333333) internal successors, (170), 168 states have internal predecessors, (170), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 174 transitions. [2023-11-19 07:34:15,122 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 174 transitions. Word has length 6 [2023-11-19 07:34:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:15,123 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 174 transitions. [2023-11-19 07:34:15,123 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 07:34:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 174 transitions. [2023-11-19 07:34:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:34:15,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:15,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:34:15,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:15,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:15,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2023-11-19 07:34:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728274108] [2023-11-19 07:34:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:15,276 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 07:34:15,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:15,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728274108] [2023-11-19 07:34:15,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728274108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:15,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:15,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:15,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209294522] [2023-11-19 07:34:15,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:15,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:15,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:15,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:15,281 INFO L87 Difference]: Start difference. First operand 172 states and 174 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 07:34:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:15,384 INFO L93 Difference]: Finished difference Result 253 states and 255 transitions. [2023-11-19 07:34:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:15,385 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 07:34:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:15,388 INFO L225 Difference]: With dead ends: 253 [2023-11-19 07:34:15,388 INFO L226 Difference]: Without dead ends: 176 [2023-11-19 07:34:15,389 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 07:34:15,391 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 4 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:15,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 503 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:15,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-19 07:34:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-19 07:34:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 100 states have (on average 1.74) internal successors, (174), 172 states have internal predecessors, (174), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 178 transitions. [2023-11-19 07:34:15,412 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 178 transitions. Word has length 6 [2023-11-19 07:34:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:15,412 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 178 transitions. [2023-11-19 07:34:15,413 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 07:34:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 178 transitions. [2023-11-19 07:34:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:34:15,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:15,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:15,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:34:15,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:15,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:15,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1182784684, now seen corresponding path program 1 times [2023-11-19 07:34:15,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:15,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413729183] [2023-11-19 07:34:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:15,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:15,528 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 07:34:15,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413729183] [2023-11-19 07:34:15,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413729183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:15,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:15,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:15,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3658775] [2023-11-19 07:34:15,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:15,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:15,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:15,538 INFO L87 Difference]: Start difference. First operand 176 states and 178 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:16,050 INFO L93 Difference]: Finished difference Result 320 states and 324 transitions. [2023-11-19 07:34:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:16,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:34:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:16,054 INFO L225 Difference]: With dead ends: 320 [2023-11-19 07:34:16,054 INFO L226 Difference]: Without dead ends: 264 [2023-11-19 07:34:16,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:16,061 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 90 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:16,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 131 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:34:16,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-19 07:34:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 250. [2023-11-19 07:34:16,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 173 states have (on average 1.5086705202312138) internal successors, (261), 245 states have internal predecessors, (261), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 267 transitions. [2023-11-19 07:34:16,086 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 267 transitions. Word has length 9 [2023-11-19 07:34:16,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:16,086 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 267 transitions. [2023-11-19 07:34:16,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 267 transitions. [2023-11-19 07:34:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 07:34:16,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:16,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:16,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:34:16,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:16,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:16,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1018296696, now seen corresponding path program 1 times [2023-11-19 07:34:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:16,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271277041] [2023-11-19 07:34:16,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:16,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:16,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:16,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202559458] [2023-11-19 07:34:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:16,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:16,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:16,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:16,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:34:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:16,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:34:16,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:16,328 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 07:34:16,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:16,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271277041] [2023-11-19 07:34:16,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202559458] [2023-11-19 07:34:16,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202559458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:16,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:16,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95590182] [2023-11-19 07:34:16,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:16,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:16,333 INFO L87 Difference]: Start difference. First operand 250 states and 267 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 07:34:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:16,387 INFO L93 Difference]: Finished difference Result 250 states and 267 transitions. [2023-11-19 07:34:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:16,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-11-19 07:34:16,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:16,390 INFO L225 Difference]: With dead ends: 250 [2023-11-19 07:34:16,390 INFO L226 Difference]: Without dead ends: 247 [2023-11-19 07:34:16,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 07:34:16,392 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 127 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:16,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 153 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:16,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-19 07:34:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-19 07:34:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 173 states have (on average 1.4797687861271676) internal successors, (256), 242 states have internal predecessors, (256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:16,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 262 transitions. [2023-11-19 07:34:16,412 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 262 transitions. Word has length 37 [2023-11-19 07:34:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:16,413 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 262 transitions. [2023-11-19 07:34:16,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 07:34:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 262 transitions. [2023-11-19 07:34:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 07:34:16,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:16,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:16,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:16,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:16,634 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:16,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1502426391, now seen corresponding path program 1 times [2023-11-19 07:34:16,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:16,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312005418] [2023-11-19 07:34:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:16,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:16,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107602569] [2023-11-19 07:34:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:16,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:16,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:16,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:16,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:34:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:16,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:34:16,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:16,827 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 07:34:16,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312005418] [2023-11-19 07:34:16,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107602569] [2023-11-19 07:34:16,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107602569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:16,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011028142] [2023-11-19 07:34:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:16,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:16,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:16,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:16,839 INFO L87 Difference]: Start difference. First operand 247 states and 262 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 07:34:16,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:16,942 INFO L93 Difference]: Finished difference Result 272 states and 275 transitions. [2023-11-19 07:34:16,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:16,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-11-19 07:34:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:16,945 INFO L225 Difference]: With dead ends: 272 [2023-11-19 07:34:16,945 INFO L226 Difference]: Without dead ends: 270 [2023-11-19 07:34:16,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 07:34:16,947 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 66 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:16,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 293 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:34:16,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-19 07:34:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 247. [2023-11-19 07:34:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 173 states have (on average 1.4682080924855492) internal successors, (254), 242 states have internal predecessors, (254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 260 transitions. [2023-11-19 07:34:16,982 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 260 transitions. Word has length 38 [2023-11-19 07:34:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:16,982 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 260 transitions. [2023-11-19 07:34:16,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 07:34:16,983 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 260 transitions. [2023-11-19 07:34:16,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:34:16,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:16,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:17,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:34:17,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:17,201 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:17,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:17,202 INFO L85 PathProgramCache]: Analyzing trace with hash 669422250, now seen corresponding path program 1 times [2023-11-19 07:34:17,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:17,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604845075] [2023-11-19 07:34:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:17,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:17,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936252722] [2023-11-19 07:34:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:17,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:17,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:34:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:17,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:17,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:17,399 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 07:34:17,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604845075] [2023-11-19 07:34:17,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936252722] [2023-11-19 07:34:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936252722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:17,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907205911] [2023-11-19 07:34:17,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:17,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:17,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:17,403 INFO L87 Difference]: Start difference. First operand 247 states and 260 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 07:34:17,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:17,609 INFO L93 Difference]: Finished difference Result 270 states and 273 transitions. [2023-11-19 07:34:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:17,610 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), 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 39 [2023-11-19 07:34:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:17,612 INFO L225 Difference]: With dead ends: 270 [2023-11-19 07:34:17,612 INFO L226 Difference]: Without dead ends: 265 [2023-11-19 07:34:17,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:17,613 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 149 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:17,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 230 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-19 07:34:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 250. [2023-11-19 07:34:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 176 states have (on average 1.4431818181818181) internal successors, (254), 245 states have internal predecessors, (254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 260 transitions. [2023-11-19 07:34:17,627 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 260 transitions. Word has length 39 [2023-11-19 07:34:17,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:17,628 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 260 transitions. [2023-11-19 07:34:17,628 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), 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 07:34:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 260 transitions. [2023-11-19 07:34:17,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:34:17,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:17,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:17,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:17,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:17,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:17,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:17,846 INFO L85 PathProgramCache]: Analyzing trace with hash -722746613, now seen corresponding path program 1 times [2023-11-19 07:34:17,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:17,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593253391] [2023-11-19 07:34:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:17,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:17,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771641069] [2023-11-19 07:34:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:17,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:17,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:17,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:17,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:34:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:17,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:17,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:18,044 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 07:34:18,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:18,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:18,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593253391] [2023-11-19 07:34:18,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:18,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771641069] [2023-11-19 07:34:18,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771641069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:18,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:18,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:18,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050966768] [2023-11-19 07:34:18,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:18,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:18,053 INFO L87 Difference]: Start difference. First operand 250 states and 260 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:18,391 INFO L93 Difference]: Finished difference Result 265 states and 278 transitions. [2023-11-19 07:34:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-19 07:34:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:18,394 INFO L225 Difference]: With dead ends: 265 [2023-11-19 07:34:18,394 INFO L226 Difference]: Without dead ends: 211 [2023-11-19 07:34:18,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:18,395 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:18,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 71 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:34:18,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-19 07:34:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2023-11-19 07:34:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 152 states have (on average 1.4078947368421053) internal successors, (214), 204 states have internal predecessors, (214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:18,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 220 transitions. [2023-11-19 07:34:18,411 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 220 transitions. Word has length 40 [2023-11-19 07:34:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:18,411 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 220 transitions. [2023-11-19 07:34:18,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 220 transitions. [2023-11-19 07:34:18,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:34:18,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:18,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:18,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:18,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:34:18,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:18,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash 257982969, now seen corresponding path program 1 times [2023-11-19 07:34:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:18,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106322069] [2023-11-19 07:34:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:18,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:18,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020812351] [2023-11-19 07:34:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:18,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:18,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:18,672 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:18,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:34:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:18,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:34:18,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:18,835 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 07:34:18,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:18,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:18,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106322069] [2023-11-19 07:34:18,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:18,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020812351] [2023-11-19 07:34:18,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020812351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:18,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:18,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:18,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102656098] [2023-11-19 07:34:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:18,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:18,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:18,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:18,846 INFO L87 Difference]: Start difference. First operand 209 states and 220 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:18,864 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2023-11-19 07:34:18,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:18,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-19 07:34:18,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:18,867 INFO L225 Difference]: With dead ends: 209 [2023-11-19 07:34:18,867 INFO L226 Difference]: Without dead ends: 208 [2023-11-19 07:34:18,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:18,869 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:18,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 155 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-19 07:34:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-19 07:34:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.394736842105263) internal successors, (212), 203 states have internal predecessors, (212), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 218 transitions. [2023-11-19 07:34:18,881 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 218 transitions. Word has length 49 [2023-11-19 07:34:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:18,883 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 218 transitions. [2023-11-19 07:34:18,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 218 transitions. [2023-11-19 07:34:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:34:18,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:18,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:18,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:19,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:34:19,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:19,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash -592462422, now seen corresponding path program 1 times [2023-11-19 07:34:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383959467] [2023-11-19 07:34:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:19,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:19,119 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:19,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746297937] [2023-11-19 07:34:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:19,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:19,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:19,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:19,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:34:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:19,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:34:19,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:19,248 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 07:34:19,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:19,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383959467] [2023-11-19 07:34:19,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746297937] [2023-11-19 07:34:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746297937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:19,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:19,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:19,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190889583] [2023-11-19 07:34:19,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:19,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:19,254 INFO L87 Difference]: Start difference. First operand 208 states and 218 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:19,272 INFO L93 Difference]: Finished difference Result 209 states and 218 transitions. [2023-11-19 07:34:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:19,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 07:34:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:19,277 INFO L225 Difference]: With dead ends: 209 [2023-11-19 07:34:19,277 INFO L226 Difference]: Without dead ends: 208 [2023-11-19 07:34:19,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:19,280 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:19,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-19 07:34:19,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-19 07:34:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.388157894736842) internal successors, (211), 203 states have internal predecessors, (211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 217 transitions. [2023-11-19 07:34:19,293 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 217 transitions. Word has length 50 [2023-11-19 07:34:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:19,294 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 217 transitions. [2023-11-19 07:34:19,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 217 transitions. [2023-11-19 07:34:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:34:19,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:19,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:19,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:34:19,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:34:19,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:19,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1579375086, now seen corresponding path program 1 times [2023-11-19 07:34:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:19,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159993450] [2023-11-19 07:34:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:19,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:19,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304009478] [2023-11-19 07:34:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:19,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:19,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:19,531 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:19,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:34:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:19,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:34:19,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:19,701 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 07:34:19,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:19,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159993450] [2023-11-19 07:34:19,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304009478] [2023-11-19 07:34:19,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304009478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:19,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:19,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560801242] [2023-11-19 07:34:19,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:19,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:19,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:19,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:19,710 INFO L87 Difference]: Start difference. First operand 208 states and 217 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:20,087 INFO L93 Difference]: Finished difference Result 357 states and 373 transitions. [2023-11-19 07:34:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-19 07:34:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:20,090 INFO L225 Difference]: With dead ends: 357 [2023-11-19 07:34:20,090 INFO L226 Difference]: Without dead ends: 316 [2023-11-19 07:34:20,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:20,091 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 100 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:20,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 133 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:34:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-19 07:34:20,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 293. [2023-11-19 07:34:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 286 states have internal predecessors, (306), 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 07:34:20,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 316 transitions. [2023-11-19 07:34:20,122 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 316 transitions. Word has length 54 [2023-11-19 07:34:20,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:20,122 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 316 transitions. [2023-11-19 07:34:20,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 316 transitions. [2023-11-19 07:34:20,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:34:20,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:20,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:20,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:20,345 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash 692470868, now seen corresponding path program 1 times [2023-11-19 07:34:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:20,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178942407] [2023-11-19 07:34:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:20,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:20,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:20,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197912928] [2023-11-19 07:34:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:20,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:20,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:20,360 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:34:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:20,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:20,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:20,506 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 07:34:20,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:20,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:20,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178942407] [2023-11-19 07:34:20,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:20,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197912928] [2023-11-19 07:34:20,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197912928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:20,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:20,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:20,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029373714] [2023-11-19 07:34:20,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:20,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:20,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:20,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:20,510 INFO L87 Difference]: Start difference. First operand 293 states and 316 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:20,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:20,753 INFO L93 Difference]: Finished difference Result 294 states and 316 transitions. [2023-11-19 07:34:20,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:20,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2023-11-19 07:34:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:20,756 INFO L225 Difference]: With dead ends: 294 [2023-11-19 07:34:20,756 INFO L226 Difference]: Without dead ends: 293 [2023-11-19 07:34:20,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 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 07:34:20,757 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 42 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:20,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 266 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:20,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-19 07:34:20,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-11-19 07:34:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 235 states have (on average 1.297872340425532) internal successors, (305), 286 states have internal predecessors, (305), 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 07:34:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 315 transitions. [2023-11-19 07:34:20,773 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 315 transitions. Word has length 60 [2023-11-19 07:34:20,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:20,773 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 315 transitions. [2023-11-19 07:34:20,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 315 transitions. [2023-11-19 07:34:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:34:20,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:20,774 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:20,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:20,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:20,995 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:20,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -255425322, now seen corresponding path program 1 times [2023-11-19 07:34:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:20,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816583604] [2023-11-19 07:34:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:20,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:21,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:21,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536463504] [2023-11-19 07:34:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:21,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:21,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:21,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:34:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:21,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:21,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:21,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:21,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:21,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816583604] [2023-11-19 07:34:21,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:21,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536463504] [2023-11-19 07:34:21,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536463504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:21,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715460352] [2023-11-19 07:34:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:21,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:21,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:21,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:21,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:21,217 INFO L87 Difference]: Start difference. First operand 293 states and 315 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:21,245 INFO L93 Difference]: Finished difference Result 293 states and 315 transitions. [2023-11-19 07:34:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2023-11-19 07:34:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:21,248 INFO L225 Difference]: With dead ends: 293 [2023-11-19 07:34:21,248 INFO L226 Difference]: Without dead ends: 292 [2023-11-19 07:34:21,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 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 07:34:21,249 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 102 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:21,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-19 07:34:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-11-19 07:34:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 285 states have internal predecessors, (303), 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 07:34:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 313 transitions. [2023-11-19 07:34:21,263 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 313 transitions. Word has length 62 [2023-11-19 07:34:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:21,264 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 313 transitions. [2023-11-19 07:34:21,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 313 transitions. [2023-11-19 07:34:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:34:21,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:21,266 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:21,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:21,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:21,481 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:21,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:21,481 INFO L85 PathProgramCache]: Analyzing trace with hash 671749658, now seen corresponding path program 1 times [2023-11-19 07:34:21,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:21,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130245681] [2023-11-19 07:34:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:21,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:21,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701269518] [2023-11-19 07:34:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:21,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:21,502 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:21,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:34:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:21,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:21,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:21,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130245681] [2023-11-19 07:34:21,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701269518] [2023-11-19 07:34:21,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701269518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:21,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:21,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563587408] [2023-11-19 07:34:21,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:21,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:21,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:21,654 INFO L87 Difference]: Start difference. First operand 292 states and 313 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:21,709 INFO L93 Difference]: Finished difference Result 382 states and 402 transitions. [2023-11-19 07:34:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-11-19 07:34:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:21,713 INFO L225 Difference]: With dead ends: 382 [2023-11-19 07:34:21,713 INFO L226 Difference]: Without dead ends: 381 [2023-11-19 07:34:21,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:21,714 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:21,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 673 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:21,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-19 07:34:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 355. [2023-11-19 07:34:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 296 states have (on average 1.2736486486486487) internal successors, (377), 347 states have internal predecessors, (377), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:34:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 391 transitions. [2023-11-19 07:34:21,733 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 391 transitions. Word has length 63 [2023-11-19 07:34:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:21,734 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 391 transitions. [2023-11-19 07:34:21,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 391 transitions. [2023-11-19 07:34:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:34:21,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:21,743 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:21,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:21,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:34:21,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:21,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1691752503, now seen corresponding path program 1 times [2023-11-19 07:34:21,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:21,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194339311] [2023-11-19 07:34:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:21,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:21,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199868391] [2023-11-19 07:34:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:21,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:21,982 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:22,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:34:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:22,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:34:22,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:22,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:22,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:22,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194339311] [2023-11-19 07:34:22,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:22,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199868391] [2023-11-19 07:34:22,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199868391] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:22,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:22,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-19 07:34:22,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204325414] [2023-11-19 07:34:22,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:22,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:34:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:34:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:22,319 INFO L87 Difference]: Start difference. First operand 355 states and 391 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:22,458 INFO L93 Difference]: Finished difference Result 600 states and 628 transitions. [2023-11-19 07:34:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:34:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2023-11-19 07:34:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:22,463 INFO L225 Difference]: With dead ends: 600 [2023-11-19 07:34:22,464 INFO L226 Difference]: Without dead ends: 497 [2023-11-19 07:34:22,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 178 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 07:34:22,465 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 210 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:22,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 796 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-19 07:34:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 432. [2023-11-19 07:34:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 369 states have (on average 1.3441734417344173) internal successors, (496), 420 states have internal predecessors, (496), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 512 transitions. [2023-11-19 07:34:22,489 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 512 transitions. Word has length 94 [2023-11-19 07:34:22,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:22,489 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 512 transitions. [2023-11-19 07:34:22,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 512 transitions. [2023-11-19 07:34:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:34:22,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:22,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 07:34:22,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:22,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:22,712 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:22,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash -76164263, now seen corresponding path program 1 times [2023-11-19 07:34:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:22,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717115513] [2023-11-19 07:34:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:22,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:22,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558453485] [2023-11-19 07:34:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:22,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:22,729 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:22,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:34:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:22,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:34:22,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:23,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:23,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717115513] [2023-11-19 07:34:23,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:23,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558453485] [2023-11-19 07:34:23,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558453485] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:23,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:23,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:34:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369435009] [2023-11-19 07:34:23,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:23,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:34:23,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:34:23,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:23,319 INFO L87 Difference]: Start difference. First operand 432 states and 512 transitions. Second operand has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:24,074 INFO L93 Difference]: Finished difference Result 477 states and 512 transitions. [2023-11-19 07:34:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:34:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2023-11-19 07:34:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:24,078 INFO L225 Difference]: With dead ends: 477 [2023-11-19 07:34:24,078 INFO L226 Difference]: Without dead ends: 470 [2023-11-19 07:34:24,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:24,080 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 288 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:24,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 330 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:34:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-19 07:34:24,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 432. [2023-11-19 07:34:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 369 states have (on average 1.3170731707317074) internal successors, (486), 420 states have internal predecessors, (486), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 502 transitions. [2023-11-19 07:34:24,108 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 502 transitions. Word has length 94 [2023-11-19 07:34:24,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:24,108 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 502 transitions. [2023-11-19 07:34:24,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 502 transitions. [2023-11-19 07:34:24,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 07:34:24,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:24,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 07:34:24,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:24,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:24,331 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:24,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:24,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1933875258, now seen corresponding path program 1 times [2023-11-19 07:34:24,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:24,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620154579] [2023-11-19 07:34:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:24,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:24,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:24,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461798109] [2023-11-19 07:34:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:24,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:24,357 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:24,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:34:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:24,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:34:24,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:24,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:27,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:27,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620154579] [2023-11-19 07:34:27,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:27,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461798109] [2023-11-19 07:34:27,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461798109] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:27,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:27,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-19 07:34:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504412052] [2023-11-19 07:34:27,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:27,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:34:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:34:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:34:27,258 INFO L87 Difference]: Start difference. First operand 432 states and 502 transitions. Second operand has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:32,147 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 07:34:34,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:34:36,750 WARN L539 Checker$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 07:34:39,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:34:41,879 WARN L539 Checker$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 07:34:42,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:42,192 INFO L93 Difference]: Finished difference Result 446 states and 502 transitions. [2023-11-19 07:34:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:42,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 95 [2023-11-19 07:34:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:42,196 INFO L225 Difference]: With dead ends: 446 [2023-11-19 07:34:42,196 INFO L226 Difference]: Without dead ends: 442 [2023-11-19 07:34:42,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:34:42,198 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 276 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 60 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:42,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 124 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 698 Invalid, 5 Unknown, 0 Unchecked, 12.7s Time] [2023-11-19 07:34:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-11-19 07:34:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 430. [2023-11-19 07:34:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 369 states have (on average 1.2926829268292683) internal successors, (477), 418 states have internal predecessors, (477), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 493 transitions. [2023-11-19 07:34:42,246 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 493 transitions. Word has length 95 [2023-11-19 07:34:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:42,247 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 493 transitions. [2023-11-19 07:34:42,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 493 transitions. [2023-11-19 07:34:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:34:42,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:42,249 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:42,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:42,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:34:42,465 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:42,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 918134298, now seen corresponding path program 1 times [2023-11-19 07:34:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684781284] [2023-11-19 07:34:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:42,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:42,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084897490] [2023-11-19 07:34:42,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:42,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:42,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:42,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:42,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:34:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:42,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:42,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:42,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:42,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684781284] [2023-11-19 07:34:42,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:42,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084897490] [2023-11-19 07:34:42,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084897490] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:42,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:42,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:34:42,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4453462] [2023-11-19 07:34:42,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:42,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:42,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:42,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:42,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:42,836 INFO L87 Difference]: Start difference. First operand 430 states and 493 transitions. Second operand has 6 states, 5 states have (on average 38.4) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:42,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:42,902 INFO L93 Difference]: Finished difference Result 593 states and 616 transitions. [2023-11-19 07:34:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:42,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 38.4) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 106 [2023-11-19 07:34:42,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:42,908 INFO L225 Difference]: With dead ends: 593 [2023-11-19 07:34:42,908 INFO L226 Difference]: Without dead ends: 592 [2023-11-19 07:34:42,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 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 07:34:42,909 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 203 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:42,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 673 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:42,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-19 07:34:42,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 468. [2023-11-19 07:34:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 406 states have (on average 1.3103448275862069) internal successors, (532), 455 states have internal predecessors, (532), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:34:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 550 transitions. [2023-11-19 07:34:42,936 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 550 transitions. Word has length 106 [2023-11-19 07:34:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:42,936 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 550 transitions. [2023-11-19 07:34:42,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.4) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 550 transitions. [2023-11-19 07:34:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 07:34:42,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:42,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:42,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:34:43,153 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:43,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash -760729652, now seen corresponding path program 1 times [2023-11-19 07:34:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761610792] [2023-11-19 07:34:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:43,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834728074] [2023-11-19 07:34:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:43,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:43,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:43,181 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:43,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:34:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:43,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:43,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:43,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:43,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:43,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761610792] [2023-11-19 07:34:43,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:43,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834728074] [2023-11-19 07:34:43,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834728074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:43,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:43,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468682519] [2023-11-19 07:34:43,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:43,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:43,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:43,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:43,437 INFO L87 Difference]: Start difference. First operand 468 states and 550 transitions. Second operand has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:43,805 INFO L93 Difference]: Finished difference Result 470 states and 550 transitions. [2023-11-19 07:34:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:43,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 121 [2023-11-19 07:34:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:43,809 INFO L225 Difference]: With dead ends: 470 [2023-11-19 07:34:43,810 INFO L226 Difference]: Without dead ends: 450 [2023-11-19 07:34:43,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 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 07:34:43,811 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 213 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:43,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 93 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:34:43,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2023-11-19 07:34:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 448. [2023-11-19 07:34:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 406 states have (on average 1.167487684729064) internal successors, (474), 435 states have internal predecessors, (474), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:34:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 492 transitions. [2023-11-19 07:34:43,840 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 492 transitions. Word has length 121 [2023-11-19 07:34:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:43,855 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 492 transitions. [2023-11-19 07:34:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:43,856 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 492 transitions. [2023-11-19 07:34:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:34:43,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:43,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:43,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:44,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:34:44,077 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:44,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2107782675, now seen corresponding path program 1 times [2023-11-19 07:34:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335775233] [2023-11-19 07:34:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:44,098 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:44,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8640899] [2023-11-19 07:34:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:44,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:44,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:44,100 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:44,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:34:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:44,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:44,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:44,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335775233] [2023-11-19 07:34:44,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8640899] [2023-11-19 07:34:44,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8640899] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:44,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:44,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:34:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117277344] [2023-11-19 07:34:44,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:44,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:34:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:34:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:44,559 INFO L87 Difference]: Start difference. First operand 448 states and 492 transitions. Second operand has 8 states, 7 states have (on average 32.0) internal successors, (224), 8 states have internal predecessors, (224), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:45,121 INFO L93 Difference]: Finished difference Result 472 states and 498 transitions. [2023-11-19 07:34:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:34:45,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 32.0) internal successors, (224), 8 states have internal predecessors, (224), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 122 [2023-11-19 07:34:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:45,126 INFO L225 Difference]: With dead ends: 472 [2023-11-19 07:34:45,126 INFO L226 Difference]: Without dead ends: 468 [2023-11-19 07:34:45,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:45,128 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 264 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:45,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 97 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:34:45,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-19 07:34:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 446. [2023-11-19 07:34:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 406 states have (on average 1.1527093596059113) internal successors, (468), 433 states have internal predecessors, (468), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:34:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 486 transitions. [2023-11-19 07:34:45,156 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 486 transitions. Word has length 122 [2023-11-19 07:34:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:45,157 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 486 transitions. [2023-11-19 07:34:45,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 32.0) internal successors, (224), 8 states have internal predecessors, (224), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 486 transitions. [2023-11-19 07:34:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:34:45,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:45,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:45,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:45,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:45,377 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:45,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1645414927, now seen corresponding path program 1 times [2023-11-19 07:34:45,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:45,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697572616] [2023-11-19 07:34:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:45,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:45,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:45,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464854462] [2023-11-19 07:34:45,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:45,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:45,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:45,401 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:45,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:34:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:45,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:34:45,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:45,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:45,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697572616] [2023-11-19 07:34:45,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464854462] [2023-11-19 07:34:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464854462] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:45,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:45,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:34:45,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450586643] [2023-11-19 07:34:45,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:45,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:34:45,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:45,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:34:45,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:45,881 INFO L87 Difference]: Start difference. First operand 446 states and 486 transitions. Second operand has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 8 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:46,395 INFO L93 Difference]: Finished difference Result 465 states and 492 transitions. [2023-11-19 07:34:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:34:46,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 8 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 124 [2023-11-19 07:34:46,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:46,399 INFO L225 Difference]: With dead ends: 465 [2023-11-19 07:34:46,399 INFO L226 Difference]: Without dead ends: 449 [2023-11-19 07:34:46,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:46,400 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 343 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:46,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 183 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:34:46,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-19 07:34:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 438. [2023-11-19 07:34:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 402 states have (on average 1.109452736318408) internal successors, (446), 426 states have internal predecessors, (446), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:34:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 464 transitions. [2023-11-19 07:34:46,422 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 464 transitions. Word has length 124 [2023-11-19 07:34:46,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:46,422 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 464 transitions. [2023-11-19 07:34:46,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 8 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 464 transitions. [2023-11-19 07:34:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 07:34:46,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:46,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:46,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:46,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:46,645 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:46,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1470987247, now seen corresponding path program 1 times [2023-11-19 07:34:46,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:46,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583893939] [2023-11-19 07:34:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:46,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:46,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:46,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036813047] [2023-11-19 07:34:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:46,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:46,667 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:46,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:34:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:46,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:34:46,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:34:47,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:47,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:47,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583893939] [2023-11-19 07:34:47,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:47,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036813047] [2023-11-19 07:34:47,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036813047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:47,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:34:47,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:34:47,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487336489] [2023-11-19 07:34:47,519 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:47,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:47,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:47,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:47,521 INFO L87 Difference]: Start difference. First operand 438 states and 464 transitions. Second operand has 5 states, 4 states have (on average 33.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:34:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:47,769 INFO L93 Difference]: Finished difference Result 438 states and 464 transitions. [2023-11-19 07:34:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 144 [2023-11-19 07:34:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:47,773 INFO L225 Difference]: With dead ends: 438 [2023-11-19 07:34:47,773 INFO L226 Difference]: Without dead ends: 437 [2023-11-19 07:34:47,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:47,774 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:47,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 52 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-19 07:34:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2023-11-19 07:34:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 402 states have (on average 1.1069651741293531) internal successors, (445), 425 states have internal predecessors, (445), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:34:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 463 transitions. [2023-11-19 07:34:47,799 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 463 transitions. Word has length 144 [2023-11-19 07:34:47,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:47,800 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 463 transitions. [2023-11-19 07:34:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:34:47,800 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 463 transitions. [2023-11-19 07:34:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-19 07:34:47,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:47,802 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:47,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:48,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:48,023 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:48,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1644035826, now seen corresponding path program 1 times [2023-11-19 07:34:48,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:48,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123443031] [2023-11-19 07:34:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:48,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:48,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604909921] [2023-11-19 07:34:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:48,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:48,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:48,045 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:48,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:34:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:48,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:34:48,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:34:48,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:48,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123443031] [2023-11-19 07:34:48,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604909921] [2023-11-19 07:34:48,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604909921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:48,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:34:48,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:34:48,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366914225] [2023-11-19 07:34:48,702 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:48,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:48,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:48,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:48,704 INFO L87 Difference]: Start difference. First operand 437 states and 463 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:49,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:49,142 INFO L93 Difference]: Finished difference Result 440 states and 465 transitions. [2023-11-19 07:34:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:49,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 145 [2023-11-19 07:34:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:49,146 INFO L225 Difference]: With dead ends: 440 [2023-11-19 07:34:49,146 INFO L226 Difference]: Without dead ends: 402 [2023-11-19 07:34:49,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:34:49,147 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 38 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:49,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 138 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:34:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-19 07:34:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2023-11-19 07:34:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 368 states have (on average 1.1141304347826086) internal successors, (410), 390 states have internal predecessors, (410), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 426 transitions. [2023-11-19 07:34:49,169 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 426 transitions. Word has length 145 [2023-11-19 07:34:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:49,170 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 426 transitions. [2023-11-19 07:34:49,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 426 transitions. [2023-11-19 07:34:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:34:49,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:49,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:49,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:49,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:34:49,385 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:49,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:49,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1637904876, now seen corresponding path program 1 times [2023-11-19 07:34:49,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:49,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745682839] [2023-11-19 07:34:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:49,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:49,405 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:49,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452306742] [2023-11-19 07:34:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:49,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:49,407 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:49,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:34:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:49,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:34:49,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:49,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 120 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:50,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745682839] [2023-11-19 07:34:50,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:50,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452306742] [2023-11-19 07:34:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452306742] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:50,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:50,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:34:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521060949] [2023-11-19 07:34:50,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:50,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:34:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:34:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:50,464 INFO L87 Difference]: Start difference. First operand 402 states and 426 transitions. Second operand has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 10 states have internal predecessors, (286), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:52,151 INFO L93 Difference]: Finished difference Result 409 states and 428 transitions. [2023-11-19 07:34:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:52,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 10 states have internal predecessors, (286), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 153 [2023-11-19 07:34:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:52,154 INFO L225 Difference]: With dead ends: 409 [2023-11-19 07:34:52,155 INFO L226 Difference]: Without dead ends: 407 [2023-11-19 07:34:52,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:34:52,156 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 425 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:52,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 159 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 07:34:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-19 07:34:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 400. [2023-11-19 07:34:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 368 states have (on average 1.0978260869565217) internal successors, (404), 388 states have internal predecessors, (404), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 420 transitions. [2023-11-19 07:34:52,178 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 420 transitions. Word has length 153 [2023-11-19 07:34:52,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:52,179 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 420 transitions. [2023-11-19 07:34:52,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 10 states have internal predecessors, (286), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:34:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 420 transitions. [2023-11-19 07:34:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 07:34:52,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:52,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:52,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:52,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:34:52,389 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:52,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:52,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1923338000, now seen corresponding path program 1 times [2023-11-19 07:34:52,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:52,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324860918] [2023-11-19 07:34:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:52,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:52,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:52,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857446012] [2023-11-19 07:34:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:52,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:52,413 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:52,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:34:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:52,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:34:52,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:34:52,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:52,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324860918] [2023-11-19 07:34:52,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857446012] [2023-11-19 07:34:52,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857446012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:52,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:34:52,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:34:52,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114613494] [2023-11-19 07:34:52,825 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:52,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:52,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:52,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:52,827 INFO L87 Difference]: Start difference. First operand 400 states and 420 transitions. Second operand has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:53,297 INFO L93 Difference]: Finished difference Result 457 states and 466 transitions. [2023-11-19 07:34:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:53,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 168 [2023-11-19 07:34:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:53,313 INFO L225 Difference]: With dead ends: 457 [2023-11-19 07:34:53,313 INFO L226 Difference]: Without dead ends: 454 [2023-11-19 07:34:53,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:53,314 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 123 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:53,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 120 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:34:53,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-19 07:34:53,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 400. [2023-11-19 07:34:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 368 states have (on average 1.0896739130434783) internal successors, (401), 388 states have internal predecessors, (401), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 417 transitions. [2023-11-19 07:34:53,338 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 417 transitions. Word has length 168 [2023-11-19 07:34:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:53,339 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 417 transitions. [2023-11-19 07:34:53,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:34:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 417 transitions. [2023-11-19 07:34:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 07:34:53,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:53,342 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:53,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:53,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:34:53,549 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:53,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:53,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1491876078, now seen corresponding path program 1 times [2023-11-19 07:34:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:53,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833743253] [2023-11-19 07:34:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:53,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:53,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:53,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686081819] [2023-11-19 07:34:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:53,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:53,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:53,573 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:53,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:34:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:53,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:34:53,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:34:53,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:34:54,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:54,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833743253] [2023-11-19 07:34:54,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:54,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686081819] [2023-11-19 07:34:54,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686081819] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:54,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:54,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:34:54,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806333996] [2023-11-19 07:34:54,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:54,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:34:54,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:54,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:34:54,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:54,600 INFO L87 Difference]: Start difference. First operand 400 states and 417 transitions. Second operand has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:34:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:55,534 INFO L93 Difference]: Finished difference Result 480 states and 499 transitions. [2023-11-19 07:34:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:34:55,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 170 [2023-11-19 07:34:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:55,538 INFO L225 Difference]: With dead ends: 480 [2023-11-19 07:34:55,538 INFO L226 Difference]: Without dead ends: 468 [2023-11-19 07:34:55,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:34:55,539 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 457 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:55,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 279 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:34:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-19 07:34:55,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 410. [2023-11-19 07:34:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 386 states have (on average 1.0466321243523315) internal successors, (404), 398 states have internal predecessors, (404), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:34:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 420 transitions. [2023-11-19 07:34:55,571 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 420 transitions. Word has length 170 [2023-11-19 07:34:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:55,572 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 420 transitions. [2023-11-19 07:34:55,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:34:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 420 transitions. [2023-11-19 07:34:55,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-19 07:34:55,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:55,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-11-19 07:34:55,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:55,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:34:55,781 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-19 07:34:55,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 826170676, now seen corresponding path program 1 times [2023-11-19 07:34:55,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:55,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277881035] [2023-11-19 07:34:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:55,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56045704] [2023-11-19 07:34:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:55,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:55,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:55,801 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:55,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba27afa-5c79-489c-9d64-4246349ddc12/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:34:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:55,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:34:55,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:34:56,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:00,334 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 9223372036854775807) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) is different from false