./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25397797dfc35333634a0be2aab10e78ef32d1e201aaa39bb0855cdf971464ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:36:43,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:43,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:36:43,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:43,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:43,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:43,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:43,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:43,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:36:43,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:36:43,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:43,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:43,698 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:43,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:43,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:36:43,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:36:43,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:43,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:36:43,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:43,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:36:43,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:36:43,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:36:43,705 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:36:43,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:36:43,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:43,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:43,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:43,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:36:43,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:43,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:43,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:36:43,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:36:43,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:43,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:36:43,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:36:43,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:36:43,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:36:43,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:36:43,713 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:36:43,714 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_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25397797dfc35333634a0be2aab10e78ef32d1e201aaa39bb0855cdf971464ab [2023-11-06 22:36:44,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:44,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:44,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:44,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:44,075 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:44,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i [2023-11-06 22:36:47,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:47,877 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:47,878 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i [2023-11-06 22:36:47,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/data/ba4b3604b/49591851a9b74df28f3e3c673b89465d/FLAG2e9aceaea [2023-11-06 22:36:47,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/data/ba4b3604b/49591851a9b74df28f3e3c673b89465d [2023-11-06 22:36:47,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:47,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:47,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:47,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:47,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:47,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:47" (1/1) ... [2023-11-06 22:36:47,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6e28b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:47, skipping insertion in model container [2023-11-06 22:36:47,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:47" (1/1) ... [2023-11-06 22:36:47,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:48,161 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i[915,928] [2023-11-06 22:36:48,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:48,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:48,265 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-64.i[915,928] [2023-11-06 22:36:48,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:48,328 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:48,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48 WrapperNode [2023-11-06 22:36:48,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:48,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:48,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:48,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:48,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,400 INFO L138 Inliner]: procedures = 26, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2023-11-06 22:36:48,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:48,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:48,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:48,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:48,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:48,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:48,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:48,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:48,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:48,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:48,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:48,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:48,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:48,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:36:48,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:36:48,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:48,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:48,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:48,741 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:48,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:49,256 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:49,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:49,265 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:36:49,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:49 BoogieIcfgContainer [2023-11-06 22:36:49,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:49,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:49,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:49,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:49,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:47" (1/3) ... [2023-11-06 22:36:49,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3237b426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:49, skipping insertion in model container [2023-11-06 22:36:49,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48" (2/3) ... [2023-11-06 22:36:49,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3237b426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:49, skipping insertion in model container [2023-11-06 22:36:49,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:49" (3/3) ... [2023-11-06 22:36:49,281 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-64.i [2023-11-06 22:36:49,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:49,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:36:49,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:36:49,383 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=LoopsAndPotentialCycles, 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;@2c8f8d66, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:36:49,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:36:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 61 states have internal predecessors, (83), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:36:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-06 22:36:49,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:49,419 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:49,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:49,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:49,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1731836053, now seen corresponding path program 1 times [2023-11-06 22:36:49,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:49,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289179997] [2023-11-06 22:36:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:49,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:49,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:49,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289179997] [2023-11-06 22:36:49,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:36:49,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63327245] [2023-11-06 22:36:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:49,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:36:49,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:49,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:36:49,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:36:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:50,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:36:50,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2023-11-06 22:36:50,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:36:50,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63327245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:50,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422781686] [2023-11-06 22:36:50,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:36:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:36:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:36:50,528 INFO L87 Difference]: Start difference. First operand has 103 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 61 states have internal predecessors, (83), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-06 22:36:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:50,581 INFO L93 Difference]: Finished difference Result 199 states and 360 transitions. [2023-11-06 22:36:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:36:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) Word has length 247 [2023-11-06 22:36:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:50,594 INFO L225 Difference]: With dead ends: 199 [2023-11-06 22:36:50,594 INFO L226 Difference]: Without dead ends: 99 [2023-11-06 22:36:50,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:36:50,605 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:36:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-06 22:36:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-06 22:36:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 57 states have internal predecessors, (75), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:36:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 155 transitions. [2023-11-06 22:36:50,686 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 155 transitions. Word has length 247 [2023-11-06 22:36:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:50,687 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 155 transitions. [2023-11-06 22:36:50,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-06 22:36:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 155 transitions. [2023-11-06 22:36:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-06 22:36:50,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:50,697 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:50,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:36:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:36:50,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:50,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1667131345, now seen corresponding path program 1 times [2023-11-06 22:36:50,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:50,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164793122] [2023-11-06 22:36:50,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:51,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:36:51,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153998573] [2023-11-06 22:36:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:36:51,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:51,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:36:51,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:36:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:51,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:36:51,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:59,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-06 22:36:59,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:36:59,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:59,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164793122] [2023-11-06 22:36:59,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:36:59,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153998573] [2023-11-06 22:36:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153998573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:59,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:59,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:36:59,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048689337] [2023-11-06 22:36:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:59,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:59,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:59,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:59,397 INFO L87 Difference]: Start difference. First operand 99 states and 155 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:37:00,006 INFO L93 Difference]: Finished difference Result 373 states and 584 transitions. [2023-11-06 22:37:00,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:37:00,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 247 [2023-11-06 22:37:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:37:00,025 INFO L225 Difference]: With dead ends: 373 [2023-11-06 22:37:00,026 INFO L226 Difference]: Without dead ends: 277 [2023-11-06 22:37:00,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:37:00,033 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 280 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:37:00,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1094 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:37:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-06 22:37:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 103. [2023-11-06 22:37:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:37:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 161 transitions. [2023-11-06 22:37:00,105 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 161 transitions. Word has length 247 [2023-11-06 22:37:00,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:00,111 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 161 transitions. [2023-11-06 22:37:00,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2023-11-06 22:37:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-06 22:37:00,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:00,130 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:00,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 22:37:00,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:00,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:00,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash 857784719, now seen corresponding path program 1 times [2023-11-06 22:37:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086055869] [2023-11-06 22:37:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:00,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:00,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335503962] [2023-11-06 22:37:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:00,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:00,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:00,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:00,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:37:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:00,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:37:00,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-06 22:37:02,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086055869] [2023-11-06 22:37:02,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:02,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335503962] [2023-11-06 22:37:02,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335503962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:02,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:02,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:02,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125807858] [2023-11-06 22:37:02,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:02,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:37:02,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:02,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:37:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:37:02,247 INFO L87 Difference]: Start difference. First operand 103 states and 161 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:37:02,613 INFO L93 Difference]: Finished difference Result 303 states and 471 transitions. [2023-11-06 22:37:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:37:02,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 247 [2023-11-06 22:37:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:37:02,620 INFO L225 Difference]: With dead ends: 303 [2023-11-06 22:37:02,621 INFO L226 Difference]: Without dead ends: 203 [2023-11-06 22:37:02,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:37:02,628 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 158 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:37:02,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 909 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:37:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-06 22:37:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 103. [2023-11-06 22:37:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:37:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 161 transitions. [2023-11-06 22:37:02,683 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 161 transitions. Word has length 247 [2023-11-06 22:37:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:02,685 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 161 transitions. [2023-11-06 22:37:02,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2023-11-06 22:37:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-06 22:37:02,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:02,692 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:02,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:02,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 22:37:02,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:02,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:02,903 INFO L85 PathProgramCache]: Analyzing trace with hash 340631695, now seen corresponding path program 1 times [2023-11-06 22:37:02,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:02,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755826631] [2023-11-06 22:37:02,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:02,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:03,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:03,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280156929] [2023-11-06 22:37:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:03,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:03,037 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:37:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:03,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:37:03,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-06 22:37:04,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:04,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755826631] [2023-11-06 22:37:04,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280156929] [2023-11-06 22:37:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280156929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:04,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520862226] [2023-11-06 22:37:04,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:04,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:37:04,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:37:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:37:04,915 INFO L87 Difference]: Start difference. First operand 103 states and 161 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:37:05,339 INFO L93 Difference]: Finished difference Result 377 states and 589 transitions. [2023-11-06 22:37:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:37:05,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 247 [2023-11-06 22:37:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:37:05,347 INFO L225 Difference]: With dead ends: 377 [2023-11-06 22:37:05,348 INFO L226 Difference]: Without dead ends: 277 [2023-11-06 22:37:05,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:37:05,357 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 285 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:37:05,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 731 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:37:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-06 22:37:05,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 103. [2023-11-06 22:37:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:37:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 161 transitions. [2023-11-06 22:37:05,397 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 161 transitions. Word has length 247 [2023-11-06 22:37:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:05,400 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 161 transitions. [2023-11-06 22:37:05,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2023-11-06 22:37:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-06 22:37:05,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:05,406 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:05,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:37:05,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:05,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:05,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1149978321, now seen corresponding path program 1 times [2023-11-06 22:37:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:05,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272816335] [2023-11-06 22:37:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:05,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:05,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:05,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847163225] [2023-11-06 22:37:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:05,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:05,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:05,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:05,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:37:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:05,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:37:05,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-06 22:37:08,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272816335] [2023-11-06 22:37:08,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847163225] [2023-11-06 22:37:08,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847163225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:08,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:08,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894679220] [2023-11-06 22:37:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:08,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:37:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:37:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:37:08,158 INFO L87 Difference]: Start difference. First operand 103 states and 161 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:37:08,458 INFO L93 Difference]: Finished difference Result 377 states and 588 transitions. [2023-11-06 22:37:08,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:37:08,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 247 [2023-11-06 22:37:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:37:08,463 INFO L225 Difference]: With dead ends: 377 [2023-11-06 22:37:08,464 INFO L226 Difference]: Without dead ends: 277 [2023-11-06 22:37:08,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:37:08,465 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 276 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:37:08,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 750 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:37:08,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-06 22:37:08,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 99. [2023-11-06 22:37:08,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 57 states have internal predecessors, (74), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:37:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 154 transitions. [2023-11-06 22:37:08,496 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 154 transitions. Word has length 247 [2023-11-06 22:37:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:08,498 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 154 transitions. [2023-11-06 22:37:08,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-06 22:37:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 154 transitions. [2023-11-06 22:37:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-06 22:37:08,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:08,503 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:08,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:08,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:08,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:08,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash 458100684, now seen corresponding path program 1 times [2023-11-06 22:37:08,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:08,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897128543] [2023-11-06 22:37:08,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:08,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:08,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:08,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942814309] [2023-11-06 22:37:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:08,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:08,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:08,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:08,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce063c4d-a70a-4c35-86be-21a58f75a121/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:37:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:08,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-06 22:37:09,003 INFO L285 TraceCheckSpWp]: Computing forward predicates...