./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya --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 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:01:24,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:01:25,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:01:25,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:01:25,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:01:25,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:01:25,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:01:25,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:01:25,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:01:25,042 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:01:25,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:01:25,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:01:25,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:01:25,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:01:25,044 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:01:25,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:01:25,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:01:25,046 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:01:25,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:01:25,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:01:25,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:01:25,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:01:25,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:01:25,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:01:25,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:01:25,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:01:25,051 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:01:25,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:01:25,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:01:25,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:01:25,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:01:25,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:01:25,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:01:25,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:01:25,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:01:25,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:01:25,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:01:25,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:01:25,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:01:25,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:01:25,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:01:25,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:01:25,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:01:25,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:01:25,056 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_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 [2023-11-29 06:01:25,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:01:25,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:01:25,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:01:25,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:01:25,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:01:25,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c [2023-11-29 06:01:28,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:01:28,252 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:01:28,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c [2023-11-29 06:01:28,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/data/628371b1e/812b48227ee243de8d2a89f12a0b1150/FLAG3dab78168 [2023-11-29 06:01:28,275 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/data/628371b1e/812b48227ee243de8d2a89f12a0b1150 [2023-11-29 06:01:28,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:01:28,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:01:28,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:01:28,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:01:28,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:01:28,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcc2a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28, skipping insertion in model container [2023-11-29 06:01:28,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:01:28,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:01:28,505 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:01:28,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:01:28,555 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:01:28,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28 WrapperNode [2023-11-29 06:01:28,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:01:28,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:01:28,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:01:28,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:01:28,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,598 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2023-11-29 06:01:28,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:01:28,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:01:28,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:01:28,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:01:28,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,627 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:01:28,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:01:28,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:01:28,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:01:28,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:01:28,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (1/1) ... [2023-11-29 06:01:28,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:01:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:28,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:01:28,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:01:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:01:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:01:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:01:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:01:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:01:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:01:28,781 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:01:28,783 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:01:29,176 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:01:29,201 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:01:29,201 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:01:29,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:01:29 BoogieIcfgContainer [2023-11-29 06:01:29,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:01:29,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:01:29,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:01:29,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:01:29,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:01:28" (1/3) ... [2023-11-29 06:01:29,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2152e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:01:29, skipping insertion in model container [2023-11-29 06:01:29,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:28" (2/3) ... [2023-11-29 06:01:29,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2152e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:01:29, skipping insertion in model container [2023-11-29 06:01:29,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:01:29" (3/3) ... [2023-11-29 06:01:29,211 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound20.c [2023-11-29 06:01:29,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:01:29,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-29 06:01:29,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:01:29,284 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;@a2e3ce5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:01:29,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-29 06:01:29,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 69 states have (on average 1.9420289855072463) internal successors, (134), 129 states have internal predecessors, (134), 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) [2023-11-29 06:01:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:01:29,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:29,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:01:29,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:29,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash 189479997, now seen corresponding path program 1 times [2023-11-29 06:01:29,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:29,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11879585] [2023-11-29 06:01:29,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:29,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:29,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11879585] [2023-11-29 06:01:29,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:01:29,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971697829] [2023-11-29 06:01:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:29,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:29,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:29,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:29,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:01:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:29,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:01:29,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:29,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971697829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:29,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:29,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:29,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118250260] [2023-11-29 06:01:29,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:29,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:01:29,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:29,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:01:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:01:29,544 INFO L87 Difference]: Start difference. First operand has 134 states, 69 states have (on average 1.9420289855072463) internal successors, (134), 129 states have internal predecessors, (134), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 06:01:29,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:29,582 INFO L93 Difference]: Finished difference Result 256 states and 280 transitions. [2023-11-29 06:01:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:01:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 06:01:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:29,593 INFO L225 Difference]: With dead ends: 256 [2023-11-29 06:01:29,593 INFO L226 Difference]: Without dead ends: 121 [2023-11-29 06:01:29,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:01:29,600 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:29,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-29 06:01:29,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-29 06:01:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 68 states have (on average 1.7352941176470589) internal successors, (118), 117 states have internal predecessors, (118), 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) [2023-11-29 06:01:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2023-11-29 06:01:29,647 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 5 [2023-11-29 06:01:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:29,647 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2023-11-29 06:01:29,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 06:01:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2023-11-29 06:01:29,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:01:29,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:29,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:01:29,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:29,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:01:29,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:29,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash 189539568, now seen corresponding path program 1 times [2023-11-29 06:01:29,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:29,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771532800] [2023-11-29 06:01:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771532800] [2023-11-29 06:01:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771532800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:29,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747087189] [2023-11-29 06:01:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:29,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:01:29,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:29,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:01:29,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:29,911 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 06:01:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:30,054 INFO L93 Difference]: Finished difference Result 235 states and 238 transitions. [2023-11-29 06:01:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:01:30,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-29 06:01:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:30,058 INFO L225 Difference]: With dead ends: 235 [2023-11-29 06:01:30,058 INFO L226 Difference]: Without dead ends: 224 [2023-11-29 06:01:30,058 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 [2023-11-29 06:01:30,060 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 100 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:30,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 181 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:30,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-29 06:01:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 174. [2023-11-29 06:01:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 119 states have (on average 1.680672268907563) internal successors, (200), 168 states have internal predecessors, (200), 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) [2023-11-29 06:01:30,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2023-11-29 06:01:30,080 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 5 [2023-11-29 06:01:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:30,080 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2023-11-29 06:01:30,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 06:01:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2023-11-29 06:01:30,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 06:01:30,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:30,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:30,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:01:30,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:30,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1308672250, now seen corresponding path program 1 times [2023-11-29 06:01:30,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:30,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819590074] [2023-11-29 06:01:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:30,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:30,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839096457] [2023-11-29 06:01:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:30,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:30,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:30,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:30,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:01:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:30,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:30,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:30,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:30,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:30,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:30,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819590074] [2023-11-29 06:01:30,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:30,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839096457] [2023-11-29 06:01:30,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839096457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:30,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:30,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:30,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861120265] [2023-11-29 06:01:30,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:01:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:30,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:01:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:30,162 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:30,423 INFO L93 Difference]: Finished difference Result 213 states and 216 transitions. [2023-11-29 06:01:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:01:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 06:01:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:30,425 INFO L225 Difference]: With dead ends: 213 [2023-11-29 06:01:30,426 INFO L226 Difference]: Without dead ends: 186 [2023-11-29 06:01:30,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:30,428 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 58 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:30,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 92 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:01:30,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-29 06:01:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 178. [2023-11-29 06:01:30,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 172 states have internal predecessors, (181), 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) [2023-11-29 06:01:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 189 transitions. [2023-11-29 06:01:30,443 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 189 transitions. Word has length 8 [2023-11-29 06:01:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:30,444 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 189 transitions. [2023-11-29 06:01:30,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-29 06:01:30,444 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 189 transitions. [2023-11-29 06:01:30,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 06:01:30,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:30,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:30,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:01:30,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:30,650 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:30,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1144700664, now seen corresponding path program 1 times [2023-11-29 06:01:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:30,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264743881] [2023-11-29 06:01:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:30,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951457799] [2023-11-29 06:01:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:30,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:30,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:30,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:30,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:01:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:30,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:30,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:30,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:30,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:30,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264743881] [2023-11-29 06:01:30,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:30,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951457799] [2023-11-29 06:01:30,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951457799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:30,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:30,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:30,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768428324] [2023-11-29 06:01:30,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:30,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:30,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:30,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:30,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:30,747 INFO L87 Difference]: Start difference. First operand 178 states and 189 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-29 06:01:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:31,037 INFO L93 Difference]: Finished difference Result 197 states and 200 transitions. [2023-11-29 06:01:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:31,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-29 06:01:31,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:31,041 INFO L225 Difference]: With dead ends: 197 [2023-11-29 06:01:31,041 INFO L226 Difference]: Without dead ends: 163 [2023-11-29 06:01:31,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:31,043 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 66 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:31,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 167 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-29 06:01:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2023-11-29 06:01:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 145 states have internal predecessors, (148), 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) [2023-11-29 06:01:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2023-11-29 06:01:31,055 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 13 [2023-11-29 06:01:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:31,056 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2023-11-29 06:01:31,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-29 06:01:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2023-11-29 06:01:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 06:01:31,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:31,057 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] [2023-11-29 06:01:31,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:01:31,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:31,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:31,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:31,258 INFO L85 PathProgramCache]: Analyzing trace with hash 223809177, now seen corresponding path program 1 times [2023-11-29 06:01:31,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:31,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993602865] [2023-11-29 06:01:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:31,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:31,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794780228] [2023-11-29 06:01:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:31,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:31,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:31,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:01:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:31,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:01:31,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:31,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:31,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993602865] [2023-11-29 06:01:31,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:31,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794780228] [2023-11-29 06:01:31,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794780228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:31,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:31,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610917648] [2023-11-29 06:01:31,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:31,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:01:31,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:31,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:01:31,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:31,392 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (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) [2023-11-29 06:01:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:31,405 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2023-11-29 06:01:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:01:31,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (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 33 [2023-11-29 06:01:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:31,407 INFO L225 Difference]: With dead ends: 150 [2023-11-29 06:01:31,407 INFO L226 Difference]: Without dead ends: 149 [2023-11-29 06:01:31,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:31,409 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:31,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 121 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-29 06:01:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-29 06:01:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 96 states have (on average 1.5208333333333333) internal successors, (146), 144 states have internal predecessors, (146), 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) [2023-11-29 06:01:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 152 transitions. [2023-11-29 06:01:31,419 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 152 transitions. Word has length 33 [2023-11-29 06:01:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:31,420 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 152 transitions. [2023-11-29 06:01:31,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (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) [2023-11-29 06:01:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 152 transitions. [2023-11-29 06:01:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:01:31,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:31,422 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] [2023-11-29 06:01:31,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:01:31,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:31,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:31,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1651850003, now seen corresponding path program 1 times [2023-11-29 06:01:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728905467] [2023-11-29 06:01:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:31,638 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:31,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98622161] [2023-11-29 06:01:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:31,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:31,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:31,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:01:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:31,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:01:31,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:31,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:31,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:31,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:31,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728905467] [2023-11-29 06:01:31,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:31,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98622161] [2023-11-29 06:01:31,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98622161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:31,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:31,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:31,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137901999] [2023-11-29 06:01:31,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:31,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:01:31,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:31,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:01:31,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:31,724 INFO L87 Difference]: Start difference. First operand 149 states and 152 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-29 06:01:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:31,738 INFO L93 Difference]: Finished difference Result 150 states and 152 transitions. [2023-11-29 06:01:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:01:31,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 34 [2023-11-29 06:01:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:31,739 INFO L225 Difference]: With dead ends: 150 [2023-11-29 06:01:31,739 INFO L226 Difference]: Without dead ends: 149 [2023-11-29 06:01:31,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:31,740 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:31,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-29 06:01:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-29 06:01:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 96 states have (on average 1.5104166666666667) internal successors, (145), 144 states have internal predecessors, (145), 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) [2023-11-29 06:01:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2023-11-29 06:01:31,746 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 34 [2023-11-29 06:01:31,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:31,747 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2023-11-29 06:01:31,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-29 06:01:31,747 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2023-11-29 06:01:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 06:01:31,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:31,748 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] [2023-11-29 06:01:31,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:01:31,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:01:31,949 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:31,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1614452623, now seen corresponding path program 1 times [2023-11-29 06:01:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900232789] [2023-11-29 06:01:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:31,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:31,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300906116] [2023-11-29 06:01:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:31,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:31,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:31,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:01:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:32,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:32,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:32,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:32,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:32,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900232789] [2023-11-29 06:01:32,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:32,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300906116] [2023-11-29 06:01:32,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300906116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:32,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:32,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:32,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471987682] [2023-11-29 06:01:32,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:32,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:32,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:32,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:32,076 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-29 06:01:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:32,345 INFO L93 Difference]: Finished difference Result 262 states and 266 transitions. [2023-11-29 06:01:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:32,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 38 [2023-11-29 06:01:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:32,354 INFO L225 Difference]: With dead ends: 262 [2023-11-29 06:01:32,354 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 06:01:32,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:32,355 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 83 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:32,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 100 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 06:01:32,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 211. [2023-11-29 06:01:32,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 156 states have (on average 1.455128205128205) internal successors, (227), 204 states have internal predecessors, (227), 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) [2023-11-29 06:01:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 237 transitions. [2023-11-29 06:01:32,367 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 237 transitions. Word has length 38 [2023-11-29 06:01:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:32,367 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 237 transitions. [2023-11-29 06:01:32,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-29 06:01:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 237 transitions. [2023-11-29 06:01:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:01:32,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:32,369 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] [2023-11-29 06:01:32,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:01:32,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:32,575 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:32,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1114199903, now seen corresponding path program 1 times [2023-11-29 06:01:32,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:32,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132311980] [2023-11-29 06:01:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:32,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:32,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:32,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651742773] [2023-11-29 06:01:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:32,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:32,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:32,586 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:32,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:01:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:32,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:32,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:32,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:32,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132311980] [2023-11-29 06:01:32,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651742773] [2023-11-29 06:01:32,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651742773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:32,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:32,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:32,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826290278] [2023-11-29 06:01:32,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:32,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:32,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:32,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:32,708 INFO L87 Difference]: Start difference. First operand 211 states and 237 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (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) [2023-11-29 06:01:36,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:01:38,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:01:38,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:38,588 INFO L93 Difference]: Finished difference Result 213 states and 237 transitions. [2023-11-29 06:01:38,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:38,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (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 41 [2023-11-29 06:01:38,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:38,590 INFO L225 Difference]: With dead ends: 213 [2023-11-29 06:01:38,591 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 06:01:38,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:38,592 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 31 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:38,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 187 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 06:01:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 06:01:38,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2023-11-29 06:01:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 156 states have (on average 1.4487179487179487) internal successors, (226), 204 states have internal predecessors, (226), 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) [2023-11-29 06:01:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 236 transitions. [2023-11-29 06:01:38,600 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 236 transitions. Word has length 41 [2023-11-29 06:01:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:38,600 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 236 transitions. [2023-11-29 06:01:38,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (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) [2023-11-29 06:01:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 236 transitions. [2023-11-29 06:01:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:01:38,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:38,602 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] [2023-11-29 06:01:38,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:38,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 06:01:38,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:38,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash -180458507, now seen corresponding path program 1 times [2023-11-29 06:01:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:38,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7877826] [2023-11-29 06:01:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:38,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771739884] [2023-11-29 06:01:38,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:38,815 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:38,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:01:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:38,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:38,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:38,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:38,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:38,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7877826] [2023-11-29 06:01:38,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:38,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771739884] [2023-11-29 06:01:38,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771739884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:38,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:38,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:38,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894530299] [2023-11-29 06:01:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:38,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:38,938 INFO L87 Difference]: Start difference. First operand 211 states and 236 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-29 06:01:39,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:39,024 INFO L93 Difference]: Finished difference Result 212 states and 236 transitions. [2023-11-29 06:01:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:39,025 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), 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 42 [2023-11-29 06:01:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:39,027 INFO L225 Difference]: With dead ends: 212 [2023-11-29 06:01:39,027 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 06:01:39,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:39,028 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 27 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:39,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 178 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:39,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 06:01:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2023-11-29 06:01:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 156 states have (on average 1.4423076923076923) internal successors, (225), 204 states have internal predecessors, (225), 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) [2023-11-29 06:01:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 235 transitions. [2023-11-29 06:01:39,037 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 235 transitions. Word has length 42 [2023-11-29 06:01:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:39,038 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 235 transitions. [2023-11-29 06:01:39,038 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), 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) [2023-11-29 06:01:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 235 transitions. [2023-11-29 06:01:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:01:39,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:39,039 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] [2023-11-29 06:01:39,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:01:39,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:39,245 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:39,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:39,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1621931849, now seen corresponding path program 1 times [2023-11-29 06:01:39,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791079875] [2023-11-29 06:01:39,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:39,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:39,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576481214] [2023-11-29 06:01:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:39,257 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:39,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:01:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:39,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:39,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:39,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:39,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:39,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791079875] [2023-11-29 06:01:39,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:39,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576481214] [2023-11-29 06:01:39,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576481214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:39,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:01:39,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580713053] [2023-11-29 06:01:39,635 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:39,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:39,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:39,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:39,636 INFO L87 Difference]: Start difference. First operand 211 states and 235 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-11-29 06:01:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:40,105 INFO L93 Difference]: Finished difference Result 211 states and 235 transitions. [2023-11-29 06:01:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:01:40,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 44 [2023-11-29 06:01:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:40,107 INFO L225 Difference]: With dead ends: 211 [2023-11-29 06:01:40,107 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 06:01:40,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:01:40,108 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 191 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:40,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 50 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 06:01:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-11-29 06:01:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 156 states have (on average 1.358974358974359) internal successors, (212), 193 states have internal predecessors, (212), 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) [2023-11-29 06:01:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 222 transitions. [2023-11-29 06:01:40,117 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 222 transitions. Word has length 44 [2023-11-29 06:01:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:40,117 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 222 transitions. [2023-11-29 06:01:40,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-11-29 06:01:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 222 transitions. [2023-11-29 06:01:40,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 06:01:40,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:40,118 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] [2023-11-29 06:01:40,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:01:40,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:40,319 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:40,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:40,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1259720285, now seen corresponding path program 1 times [2023-11-29 06:01:40,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:40,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931467089] [2023-11-29 06:01:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:40,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498506737] [2023-11-29 06:01:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:40,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:40,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:40,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:01:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:40,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:40,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:40,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:40,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:40,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931467089] [2023-11-29 06:01:40,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:40,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498506737] [2023-11-29 06:01:40,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498506737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:40,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:40,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:01:40,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221442937] [2023-11-29 06:01:40,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:40,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:01:40,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:01:40,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:40,676 INFO L87 Difference]: Start difference. First operand 200 states and 222 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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) [2023-11-29 06:01:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:41,161 INFO L93 Difference]: Finished difference Result 226 states and 238 transitions. [2023-11-29 06:01:41,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:41,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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 45 [2023-11-29 06:01:41,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:41,163 INFO L225 Difference]: With dead ends: 226 [2023-11-29 06:01:41,163 INFO L226 Difference]: Without dead ends: 215 [2023-11-29 06:01:41,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:41,164 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 274 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:41,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 143 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-29 06:01:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 201. [2023-11-29 06:01:41,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 164 states have (on average 1.2682926829268293) internal successors, (208), 194 states have internal predecessors, (208), 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) [2023-11-29 06:01:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 218 transitions. [2023-11-29 06:01:41,175 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 218 transitions. Word has length 45 [2023-11-29 06:01:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:41,175 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 218 transitions. [2023-11-29 06:01:41,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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) [2023-11-29 06:01:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 218 transitions. [2023-11-29 06:01:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 06:01:41,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:41,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:41,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:01:41,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:41,377 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:41,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2107714495, now seen corresponding path program 1 times [2023-11-29 06:01:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:41,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483653585] [2023-11-29 06:01:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:41,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:41,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43326625] [2023-11-29 06:01:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:41,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:41,388 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:41,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:01:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:41,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:01:41,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:41,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:41,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483653585] [2023-11-29 06:01:41,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:41,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43326625] [2023-11-29 06:01:41,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43326625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:41,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:01:41,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653788480] [2023-11-29 06:01:41,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:41,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:41,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:41,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:41,647 INFO L87 Difference]: Start difference. First operand 201 states and 218 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-29 06:01:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:42,144 INFO L93 Difference]: Finished difference Result 201 states and 218 transitions. [2023-11-29 06:01:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:42,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 52 [2023-11-29 06:01:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:42,146 INFO L225 Difference]: With dead ends: 201 [2023-11-29 06:01:42,146 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 06:01:42,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:42,147 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 107 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:42,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 51 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:01:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 06:01:42,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2023-11-29 06:01:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 117 states have (on average 1.1367521367521367) internal successors, (133), 128 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) [2023-11-29 06:01:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2023-11-29 06:01:42,155 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 52 [2023-11-29 06:01:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:42,155 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2023-11-29 06:01:42,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-29 06:01:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-29 06:01:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 06:01:42,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:42,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:42,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:01:42,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:01:42,368 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:42,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:42,368 INFO L85 PathProgramCache]: Analyzing trace with hash -365538887, now seen corresponding path program 1 times [2023-11-29 06:01:42,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:42,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790486372] [2023-11-29 06:01:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:42,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:42,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218894662] [2023-11-29 06:01:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:42,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:42,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:42,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:01:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:42,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:42,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:42,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:42,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790486372] [2023-11-29 06:01:42,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218894662] [2023-11-29 06:01:42,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218894662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:42,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:01:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751846075] [2023-11-29 06:01:42,840 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:42,841 INFO L87 Difference]: Start difference. First operand 133 states and 139 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-11-29 06:01:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:42,966 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2023-11-29 06:01:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:01:42,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 72 [2023-11-29 06:01:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:42,968 INFO L225 Difference]: With dead ends: 133 [2023-11-29 06:01:42,968 INFO L226 Difference]: Without dead ends: 132 [2023-11-29 06:01:42,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:42,969 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 62 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:42,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 31 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-29 06:01:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-11-29 06:01:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 117 states have (on average 1.1282051282051282) internal successors, (132), 127 states have internal predecessors, (132), 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) [2023-11-29 06:01:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 138 transitions. [2023-11-29 06:01:42,977 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 138 transitions. Word has length 72 [2023-11-29 06:01:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:42,978 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 138 transitions. [2023-11-29 06:01:42,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-11-29 06:01:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 138 transitions. [2023-11-29 06:01:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 06:01:42,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:42,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:42,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:43,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:43,180 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:43,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:43,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1553196516, now seen corresponding path program 1 times [2023-11-29 06:01:43,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:43,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351827765] [2023-11-29 06:01:43,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:43,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:43,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304222039] [2023-11-29 06:01:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:43,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:43,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:43,190 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:43,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:01:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:43,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:43,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:43,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:43,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:43,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351827765] [2023-11-29 06:01:43,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:43,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304222039] [2023-11-29 06:01:43,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304222039] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:43,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:43,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:01:43,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573537399] [2023-11-29 06:01:43,685 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:43,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:01:43,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:43,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:01:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:01:43,687 INFO L87 Difference]: Start difference. First operand 132 states and 138 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2023-11-29 06:01:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:44,017 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2023-11-29 06:01:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:44,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 73 [2023-11-29 06:01:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:44,019 INFO L225 Difference]: With dead ends: 142 [2023-11-29 06:01:44,019 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 06:01:44,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:44,020 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:44,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 73 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:44,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 06:01:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2023-11-29 06:01:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 122 states have (on average 1.1147540983606556) internal successors, (136), 132 states have internal predecessors, (136), 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) [2023-11-29 06:01:44,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 142 transitions. [2023-11-29 06:01:44,028 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 142 transitions. Word has length 73 [2023-11-29 06:01:44,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:44,028 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 142 transitions. [2023-11-29 06:01:44,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2023-11-29 06:01:44,029 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2023-11-29 06:01:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 06:01:44,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:44,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:44,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:01:44,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:44,235 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:44,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1594854525, now seen corresponding path program 1 times [2023-11-29 06:01:44,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:44,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751040740] [2023-11-29 06:01:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:44,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:44,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:44,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31243095] [2023-11-29 06:01:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:44,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:44,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:44,247 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:44,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:01:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:44,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:01:44,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:44,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751040740] [2023-11-29 06:01:45,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31243095] [2023-11-29 06:01:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31243095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:45,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:45,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:01:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352781111] [2023-11-29 06:01:45,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:45,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:45,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:45,207 INFO L87 Difference]: Start difference. First operand 137 states and 142 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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) [2023-11-29 06:01:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:45,322 INFO L93 Difference]: Finished difference Result 137 states and 142 transitions. [2023-11-29 06:01:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:45,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 76 [2023-11-29 06:01:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:45,324 INFO L225 Difference]: With dead ends: 137 [2023-11-29 06:01:45,324 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 06:01:45,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:01:45,325 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 66 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:45,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 40 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 06:01:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-29 06:01:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 117 states have (on average 1.0940170940170941) internal successors, (128), 125 states have internal predecessors, (128), 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) [2023-11-29 06:01:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2023-11-29 06:01:45,332 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 76 [2023-11-29 06:01:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:45,332 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2023-11-29 06:01:45,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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) [2023-11-29 06:01:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2023-11-29 06:01:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 06:01:45,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:45,334 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] [2023-11-29 06:01:45,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:01:45,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:45,534 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:45,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:45,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1004529270, now seen corresponding path program 1 times [2023-11-29 06:01:45,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:45,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870538762] [2023-11-29 06:01:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:45,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:45,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:45,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447453805] [2023-11-29 06:01:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:45,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:45,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:45,545 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:45,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:01:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:45,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:45,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:45,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:45,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:45,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870538762] [2023-11-29 06:01:45,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:45,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447453805] [2023-11-29 06:01:45,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447453805] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:45,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:45,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:01:45,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804757494] [2023-11-29 06:01:45,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:45,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:01:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:01:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:45,811 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 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) [2023-11-29 06:01:46,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:46,161 INFO L93 Difference]: Finished difference Result 173 states and 178 transitions. [2023-11-29 06:01:46,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:46,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 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 77 [2023-11-29 06:01:46,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:46,163 INFO L225 Difference]: With dead ends: 173 [2023-11-29 06:01:46,163 INFO L226 Difference]: Without dead ends: 169 [2023-11-29 06:01:46,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:46,164 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 126 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:46,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 105 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-29 06:01:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 135. [2023-11-29 06:01:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 123 states have (on average 1.065040650406504) internal successors, (131), 130 states have internal predecessors, (131), 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) [2023-11-29 06:01:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 137 transitions. [2023-11-29 06:01:46,172 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 137 transitions. Word has length 77 [2023-11-29 06:01:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:46,173 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 137 transitions. [2023-11-29 06:01:46,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 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) [2023-11-29 06:01:46,173 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 137 transitions. [2023-11-29 06:01:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:01:46,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:46,174 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:46,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:01:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:46,375 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:46,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1709173205, now seen corresponding path program 2 times [2023-11-29 06:01:46,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:46,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291397061] [2023-11-29 06:01:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:46,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:46,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:46,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033733212] [2023-11-29 06:01:46,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:01:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:46,387 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:46,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:01:46,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:01:46,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:01:46,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:46,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 06:01:46,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:46,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:46,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291397061] [2023-11-29 06:01:46,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:46,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033733212] [2023-11-29 06:01:46,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033733212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:46,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:46,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:46,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508641437] [2023-11-29 06:01:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:46,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:46,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:46,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:46,782 INFO L87 Difference]: Start difference. First operand 135 states and 137 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-29 06:01:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:46,888 INFO L93 Difference]: Finished difference Result 135 states and 137 transitions. [2023-11-29 06:01:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:46,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 112 [2023-11-29 06:01:46,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:46,890 INFO L225 Difference]: With dead ends: 135 [2023-11-29 06:01:46,890 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 06:01:46,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:46,891 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:46,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 06:01:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-11-29 06:01:46,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 117 states have (on average 1.0512820512820513) internal successors, (123), 122 states have internal predecessors, (123), 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) [2023-11-29 06:01:46,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 129 transitions. [2023-11-29 06:01:46,899 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 129 transitions. Word has length 112 [2023-11-29 06:01:46,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:46,899 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 129 transitions. [2023-11-29 06:01:46,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-29 06:01:46,899 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 129 transitions. [2023-11-29 06:01:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:01:46,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:46,900 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 06:01:46,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:01:47,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,101 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:47,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1709172019, now seen corresponding path program 1 times [2023-11-29 06:01:47,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:47,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764092197] [2023-11-29 06:01:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:47,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:47,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092468000] [2023-11-29 06:01:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:47,111 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:47,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:01:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:47,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:01:47,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:01:47,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:01:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:47,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764092197] [2023-11-29 06:01:47,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:47,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092468000] [2023-11-29 06:01:47,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092468000] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:47,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:47,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:01:47,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821705973] [2023-11-29 06:01:47,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:47,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:01:47,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:47,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:01:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:47,378 INFO L87 Difference]: Start difference. First operand 127 states and 129 transitions. Second operand has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 8 states have internal predecessors, (195), 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) [2023-11-29 06:01:47,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:47,430 INFO L93 Difference]: Finished difference Result 266 states and 275 transitions. [2023-11-29 06:01:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:47,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 8 states have internal predecessors, (195), 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 112 [2023-11-29 06:01:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:47,432 INFO L225 Difference]: With dead ends: 266 [2023-11-29 06:01:47,432 INFO L226 Difference]: Without dead ends: 265 [2023-11-29 06:01:47,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:47,433 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 23 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:47,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 271 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-29 06:01:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 250. [2023-11-29 06:01:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 236 states have (on average 1.0889830508474576) internal successors, (257), 241 states have internal predecessors, (257), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:01:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 271 transitions. [2023-11-29 06:01:47,445 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 271 transitions. Word has length 112 [2023-11-29 06:01:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:47,445 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 271 transitions. [2023-11-29 06:01:47,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 8 states have internal predecessors, (195), 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) [2023-11-29 06:01:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 271 transitions. [2023-11-29 06:01:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 06:01:47,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:47,446 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, 1, 1, 1, 1] [2023-11-29 06:01:47,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:47,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,647 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:47,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:47,647 INFO L85 PathProgramCache]: Analyzing trace with hash -134050797, now seen corresponding path program 1 times [2023-11-29 06:01:47,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:47,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944656084] [2023-11-29 06:01:47,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:47,656 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:47,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395022688] [2023-11-29 06:01:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:47,658 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:47,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:01:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:47,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:47,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:01:47,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:47,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:47,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944656084] [2023-11-29 06:01:47,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:47,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395022688] [2023-11-29 06:01:47,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395022688] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:47,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:47,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:01:47,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138133191] [2023-11-29 06:01:47,929 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:47,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:47,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:47,931 INFO L87 Difference]: Start difference. First operand 250 states and 271 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 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) [2023-11-29 06:01:48,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:48,099 INFO L93 Difference]: Finished difference Result 255 states and 271 transitions. [2023-11-29 06:01:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 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 118 [2023-11-29 06:01:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:48,102 INFO L225 Difference]: With dead ends: 255 [2023-11-29 06:01:48,102 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 06:01:48,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:48,103 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:48,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 52 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 06:01:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2023-11-29 06:01:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 236 states have (on average 1.0805084745762712) internal successors, (255), 241 states have internal predecessors, (255), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:01:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 269 transitions. [2023-11-29 06:01:48,117 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 269 transitions. Word has length 118 [2023-11-29 06:01:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:48,118 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 269 transitions. [2023-11-29 06:01:48,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 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) [2023-11-29 06:01:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 269 transitions. [2023-11-29 06:01:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 06:01:48,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:48,119 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, 2, 1, 1, 1, 1] [2023-11-29 06:01:48,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:01:48,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:48,320 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:48,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash 26206677, now seen corresponding path program 1 times [2023-11-29 06:01:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:48,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423081762] [2023-11-29 06:01:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:48,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:48,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:48,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483658926] [2023-11-29 06:01:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:48,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:48,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:48,333 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:48,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:01:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:48,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:01:48,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:01:48,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:01:49,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:49,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423081762] [2023-11-29 06:01:49,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:49,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483658926] [2023-11-29 06:01:49,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483658926] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:49,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:49,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 06:01:49,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883767090] [2023-11-29 06:01:49,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:49,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:01:49,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:49,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:01:49,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:01:49,479 INFO L87 Difference]: Start difference. First operand 250 states and 269 transitions. Second operand has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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) [2023-11-29 06:01:50,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:50,320 INFO L93 Difference]: Finished difference Result 252 states and 269 transitions. [2023-11-29 06:01:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:01:50,321 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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 120 [2023-11-29 06:01:50,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:50,322 INFO L225 Difference]: With dead ends: 252 [2023-11-29 06:01:50,322 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 06:01:50,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:01:50,323 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 188 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:50,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 135 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 06:01:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2023-11-29 06:01:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 236 states have (on average 1.0635593220338984) internal successors, (251), 240 states have internal predecessors, (251), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:01:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 265 transitions. [2023-11-29 06:01:50,339 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 265 transitions. Word has length 120 [2023-11-29 06:01:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:50,339 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 265 transitions. [2023-11-29 06:01:50,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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) [2023-11-29 06:01:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 265 transitions. [2023-11-29 06:01:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 06:01:50,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:50,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1] [2023-11-29 06:01:50,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 06:01:50,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:50,542 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:01:50,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -960885635, now seen corresponding path program 2 times [2023-11-29 06:01:50,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:50,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241446324] [2023-11-29 06:01:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:50,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:50,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:50,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828398106] [2023-11-29 06:01:50,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:01:50,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:50,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:50,553 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:50,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:01:50,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:01:50,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:01:50,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:01:50,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:03:10,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:10,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:10,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241446324] [2023-11-29 06:03:10,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:10,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828398106] [2023-11-29 06:03:10,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828398106] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:10,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:10,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:03:10,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294885125] [2023-11-29 06:03:10,253 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:10,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:03:10,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:10,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:03:10,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=73, Unknown=1, NotChecked=0, Total=132 [2023-11-29 06:03:10,255 INFO L87 Difference]: Start difference. First operand 249 states and 265 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 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) [2023-11-29 06:03:14,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:03:15,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:03:17,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:03:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:17,462 INFO L93 Difference]: Finished difference Result 252 states and 265 transitions. [2023-11-29 06:03:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:03:17,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 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 123 [2023-11-29 06:03:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:17,464 INFO L225 Difference]: With dead ends: 252 [2023-11-29 06:03:17,464 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 06:03:17,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 79.3s TimeCoverageRelationStatistics Valid=83, Invalid=98, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:03:17,465 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 44 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:17,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 95 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 5 Unknown, 0 Unchecked, 7.1s Time] [2023-11-29 06:03:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 06:03:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2023-11-29 06:03:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 236 states have (on average 1.0593220338983051) internal successors, (250), 240 states have internal predecessors, (250), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:03:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 264 transitions. [2023-11-29 06:03:17,479 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 264 transitions. Word has length 123 [2023-11-29 06:03:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:17,480 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 264 transitions. [2023-11-29 06:03:17,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 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) [2023-11-29 06:03:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 264 transitions. [2023-11-29 06:03:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:03:17,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:17,481 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2023-11-29 06:03:17,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:03:17,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 06:03:17,681 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:03:17,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1371674371, now seen corresponding path program 1 times [2023-11-29 06:03:17,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:17,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948359796] [2023-11-29 06:03:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:17,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:17,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:17,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663592001] [2023-11-29 06:03:17,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:17,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:17,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:17,692 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:17,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:03:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:17,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:03:17,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 132 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 06:03:18,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-11-29 06:03:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948359796] [2023-11-29 06:03:19,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663592001] [2023-11-29 06:03:19,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663592001] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:19,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:19,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2023-11-29 06:03:19,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015107341] [2023-11-29 06:03:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:19,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:03:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:19,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:03:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:03:19,133 INFO L87 Difference]: Start difference. First operand 249 states and 264 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:03:19,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:19,378 INFO L93 Difference]: Finished difference Result 249 states and 264 transitions. [2023-11-29 06:03:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:03:19,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (2), 1 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 129 [2023-11-29 06:03:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:19,380 INFO L225 Difference]: With dead ends: 249 [2023-11-29 06:03:19,380 INFO L226 Difference]: Without dead ends: 247 [2023-11-29 06:03:19,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:03:19,381 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 102 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:19,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 26 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:03:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-29 06:03:19,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-29 06:03:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.0296610169491525) internal successors, (243), 238 states have internal predecessors, (243), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:03:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 257 transitions. [2023-11-29 06:03:19,396 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 257 transitions. Word has length 129 [2023-11-29 06:03:19,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:19,396 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 257 transitions. [2023-11-29 06:03:19,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:03:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 257 transitions. [2023-11-29 06:03:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 06:03:19,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:19,398 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:03:19,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:03:19,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 06:03:19,599 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:03:19,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:19,599 INFO L85 PathProgramCache]: Analyzing trace with hash 682402604, now seen corresponding path program 2 times [2023-11-29 06:03:19,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:19,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823017832] [2023-11-29 06:03:19,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:19,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:19,609 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:19,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150036198] [2023-11-29 06:03:19,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:19,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:19,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:19,610 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:19,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:03:19,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:03:19,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:19,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:03:19,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 06:03:19,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:19,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:19,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823017832] [2023-11-29 06:03:19,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:19,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150036198] [2023-11-29 06:03:19,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150036198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:19,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:19,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:03:19,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801714741] [2023-11-29 06:03:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:19,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:03:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:03:19,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:03:19,739 INFO L87 Difference]: Start difference. First operand 247 states and 257 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-29 06:03:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:19,797 INFO L93 Difference]: Finished difference Result 247 states and 257 transitions. [2023-11-29 06:03:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:03:19,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 157 [2023-11-29 06:03:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:19,799 INFO L225 Difference]: With dead ends: 247 [2023-11-29 06:03:19,799 INFO L226 Difference]: Without dead ends: 246 [2023-11-29 06:03:19,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:03:19,800 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:19,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 24 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:03:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-29 06:03:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-11-29 06:03:19,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 236 states have (on average 1.0169491525423728) internal successors, (240), 237 states have internal predecessors, (240), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:03:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 254 transitions. [2023-11-29 06:03:19,821 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 254 transitions. Word has length 157 [2023-11-29 06:03:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:19,822 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 254 transitions. [2023-11-29 06:03:19,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-29 06:03:19,822 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 254 transitions. [2023-11-29 06:03:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 06:03:19,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:19,823 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-29 06:03:19,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:03:20,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:03:20,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-29 06:03:20,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:20,024 INFO L85 PathProgramCache]: Analyzing trace with hash -630227708, now seen corresponding path program 3 times [2023-11-29 06:03:20,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:20,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688354418] [2023-11-29 06:03:20,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:20,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:20,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892783996] [2023-11-29 06:03:20,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:03:20,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:20,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:20,034 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:20,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf119be5-43b9-4292-87fc-764013c61d61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:03:22,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:03:22,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:22,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:03:22,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 9 proven. 222 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:03:23,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:31,097 WARN L854 $PredicateComparison]: unable to prove that (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 3) (* |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| 3)) (+ (div (+ (* (- 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|) (* (- 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| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 4) 2305843009213693951)) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |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| 3)) 4) 0))) is different from false [2023-11-29 06:11:10,626 WARN L293 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:12:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 9 proven. 195 refuted. 0 times theorem prover too weak. 15 trivial. 27 not checked. [2023-11-29 06:12:59,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:12:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688354418] [2023-11-29 06:12:59,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:12:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892783996] [2023-11-29 06:12:59,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892783996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:12:59,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:12:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2023-11-29 06:12:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859540487] [2023-11-29 06:12:59,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:12:59,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 06:12:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:12:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 06:12:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=270, Unknown=2, NotChecked=34, Total=380 [2023-11-29 06:12:59,408 INFO L87 Difference]: Start difference. First operand 246 states and 254 transitions. Second operand has 20 states, 19 states have (on average 15.263157894736842) internal successors, (290), 20 states have internal predecessors, (290), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:13:04,419 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse2 (* (- 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|)) (.cse3 (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |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| 3)) 4) 0))) (.cse4 (* .cse0 3)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse5 (* |c_ULTIMATE.start_main_~y~0#1| 3))) (and (<= |c_ULTIMATE.start_main_~x~0#1| 100) (or (< 4611686018427387894 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 6))) (< (+ (* |c_ULTIMATE.start_main_~y~0#1| 90) (* .cse0 12) .cse1) (+ (div (+ (* (- 14) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 73))) 4) 2305843009213693852)) .cse3) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 15) .cse1) (+ 2305843009213693943 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 6)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 13)) .cse2) 4))) (< 4611686018427387902 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 2))) .cse3) (or (< 4611686018427387903 .cse0) (< (+ .cse4 .cse1 .cse5) (+ (div (+ .cse2 (* (- 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| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 4) 2305843009213693951)) .cse3) (or (< 4611686018427387899 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 4))) (< (+ (* .cse0 9) (* |c_ULTIMATE.start_main_~y~0#1| 42) .cse1) (+ 2305843009213693916 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 37)) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 10))) 4))) .cse3) (< (+ |c_ULTIMATE.start_main_~x~0#1| .cse4 .cse1 .cse5) 2305843009213693951)))) is different from false [2023-11-29 06:13:08,433 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse2 (* (- 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|)) (.cse3 (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |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| 3)) 4) 0)))) (and (<= |c_ULTIMATE.start_main_~x~0#1| 100) (or (< 4611686018427387894 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 6))) (< (+ (* |c_ULTIMATE.start_main_~y~0#1| 90) (* .cse0 12) .cse1) (+ (div (+ (* (- 14) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 73))) 4) 2305843009213693852)) .cse3) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 15) .cse1) (+ 2305843009213693943 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 6)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 13)) .cse2) 4))) (< 4611686018427387902 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 2))) .cse3) (or (< 4611686018427387903 .cse0) (< (+ (* .cse0 3) .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 3)) (+ (div (+ .cse2 (* (- 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| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 4) 2305843009213693951)) .cse3) (or (< 4611686018427387899 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 4))) (< (+ (* .cse0 9) (* |c_ULTIMATE.start_main_~y~0#1| 42) .cse1) (+ 2305843009213693916 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 37)) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 10))) 4))) .cse3))) is different from false [2023-11-29 06:13:12,443 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse2 (* (- 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|)) (.cse3 (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |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| 3)) 4) 0)))) (and (or (< 4611686018427387894 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 6))) (< (+ (* |c_ULTIMATE.start_main_~y~0#1| 90) (* .cse0 12) .cse1) (+ (div (+ (* (- 14) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 73))) 4) 2305843009213693852)) .cse3) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 15) .cse1) (+ 2305843009213693943 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 6)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 13)) .cse2) 4))) (< 4611686018427387902 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 2))) .cse3) (or (< 4611686018427387903 .cse0) (< (+ (* .cse0 3) .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 3)) (+ (div (+ .cse2 (* (- 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| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 4) 2305843009213693951)) .cse3) (or (< 4611686018427387899 (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 4))) (< (+ (* .cse0 9) (* |c_ULTIMATE.start_main_~y~0#1| 42) .cse1) (+ 2305843009213693916 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 37)) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 10))) 4))) .cse3))) is different from false [2023-11-29 06:13:20,681 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 86 DAG size of output: 44 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:13:46,272 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification. DAG size of input: 91 DAG size of output: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:13:50,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:13:54,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:13:58,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:25,885 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 73 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:14:29,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:33,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:37,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:41,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:44,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:48,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:52,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:14:56,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:15:00,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:15:04,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:15:52,914 WARN L293 SmtUtils]: Spent 12.21s on a formula simplification. DAG size of input: 71 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:15:55,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:15:59,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:03,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:05,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:09,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:13,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:17,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:21,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:26,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:30,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:34,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:38,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:42,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:16:46,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []