./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/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_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/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_b0e4a4ef-5995-45a7-bb46-5da059ff602c/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 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:54:25,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:54:25,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:54:25,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:54:25,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:54:25,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:54:25,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:54:25,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:54:25,756 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:54:25,757 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:54:25,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:54:25,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:54:25,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:54:25,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:54:25,760 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:54:25,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:54:25,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:54:25,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:54:25,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:54:25,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:54:25,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:54:25,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:54:25,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:54:25,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:54:25,764 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:54:25,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:54:25,765 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:54:25,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:54:25,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:54:25,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:54:25,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:54:25,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:54:25,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:54:25,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:54:25,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:54:25,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:54:25,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:54:25,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:54:25,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:54:25,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:54:25,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:54:25,771 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:54:25,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:54:25,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:54:25,771 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_b0e4a4ef-5995-45a7-bb46-5da059ff602c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 [2023-11-29 05:54:26,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:54:26,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:54:26,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:54:26,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:54:26,026 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:54:26,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2023-11-29 05:54:28,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:54:28,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:54:28,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2023-11-29 05:54:28,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/data/5a097138c/8354642e4e4d4d69a1b339bed01ca8dc/FLAG5fca15223 [2023-11-29 05:54:28,924 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/data/5a097138c/8354642e4e4d4d69a1b339bed01ca8dc [2023-11-29 05:54:28,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:54:28,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:54:28,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:54:28,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:54:28,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:54:28,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:54:28" (1/1) ... [2023-11-29 05:54:28,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19421ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:28, skipping insertion in model container [2023-11-29 05:54:28,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:54:28" (1/1) ... [2023-11-29 05:54:28,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:54:29,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:54:29,135 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:54:29,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:54:29,174 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:54:29,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29 WrapperNode [2023-11-29 05:54:29,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:54:29,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:54:29,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:54:29,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:54:29,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,217 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2023-11-29 05:54:29,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:54:29,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:54:29,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:54:29,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:54:29,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,247 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 05:54:29,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:54:29,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:54:29,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:54:29,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:54:29,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (1/1) ... [2023-11-29 05:54:29,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:54:29,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:29,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:54:29,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:54:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:54:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:54:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:54:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:54:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:54:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:54:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:54:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:54:29,408 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:54:29,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:54:29,676 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:54:29,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:54:29,700 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:54:29,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:29 BoogieIcfgContainer [2023-11-29 05:54:29,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:54:29,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:54:29,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:54:29,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:54:29,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:54:28" (1/3) ... [2023-11-29 05:54:29,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cd74a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:54:29, skipping insertion in model container [2023-11-29 05:54:29,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:29" (2/3) ... [2023-11-29 05:54:29,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cd74a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:54:29, skipping insertion in model container [2023-11-29 05:54:29,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:29" (3/3) ... [2023-11-29 05:54:29,710 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound1.c [2023-11-29 05:54:29,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:54:29,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-29 05:54:29,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:54:29,777 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;@54b8bc82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:54:29,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-29 05:54:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:54:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 05:54:29,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:29,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:29,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:29,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash -86371443, now seen corresponding path program 1 times [2023-11-29 05:54:29,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:29,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334865698] [2023-11-29 05:54:29,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:29,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:29,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:29,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334865698] [2023-11-29 05:54:29,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 05:54:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071339053] [2023-11-29 05:54:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:29,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:29,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:29,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:29,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:54:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:30,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:54:30,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:54:30,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:30,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071339053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:30,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:30,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900287102] [2023-11-29 05:54:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:30,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:54:30,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:30,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:54:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:54:30,076 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:54:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:30,109 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2023-11-29 05:54:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:54:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-29 05:54:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:30,120 INFO L225 Difference]: With dead ends: 150 [2023-11-29 05:54:30,120 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 05:54:30,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 05:54:30,128 INFO L413 NwaCegarLoop]: 84 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, 84 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 05:54:30,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 05:54:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 05:54:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 61 states have internal predecessors, (64), 8 states have call successors, (8), 2 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 05:54:30,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2023-11-29 05:54:30,179 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 21 [2023-11-29 05:54:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:30,179 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2023-11-29 05:54:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:54:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2023-11-29 05:54:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 05:54:30,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:30,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:30,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:30,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 05:54:30,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:30,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash 140634780, now seen corresponding path program 1 times [2023-11-29 05:54:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:30,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043975574] [2023-11-29 05:54:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:30,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597398153] [2023-11-29 05:54:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:30,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:30,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:54:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:30,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:54:30,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 05:54:30,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:30,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043975574] [2023-11-29 05:54:30,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597398153] [2023-11-29 05:54:30,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597398153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:30,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:30,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:54:30,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145702370] [2023-11-29 05:54:30,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:30,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:54:30,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:30,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:54:30,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:54:30,642 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:54:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:30,820 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2023-11-29 05:54:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:54:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2023-11-29 05:54:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:30,823 INFO L225 Difference]: With dead ends: 148 [2023-11-29 05:54:30,823 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 05:54:30,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:54:30,825 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 78 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:30,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 199 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 05:54:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-29 05:54:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 77 states have internal predecessors, (87), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-11-29 05:54:30,842 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 30 [2023-11-29 05:54:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:30,844 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-11-29 05:54:30,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:54:30,844 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-11-29 05:54:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 05:54:30,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:30,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:30,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:54:31,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:31,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:31,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1677847877, now seen corresponding path program 1 times [2023-11-29 05:54:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269642849] [2023-11-29 05:54:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:31,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:31,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905980967] [2023-11-29 05:54:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:31,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:31,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:31,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:54:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:31,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:54:31,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:31,161 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:54:31,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269642849] [2023-11-29 05:54:31,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905980967] [2023-11-29 05:54:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905980967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468756104] [2023-11-29 05:54:31,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:31,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:31,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:31,165 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:31,207 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2023-11-29 05:54:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2023-11-29 05:54:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:31,210 INFO L225 Difference]: With dead ends: 93 [2023-11-29 05:54:31,210 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 05:54:31,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:31,212 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 74 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 05:54:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 05:54:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 75 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2023-11-29 05:54:31,227 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 38 [2023-11-29 05:54:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:31,228 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2023-11-29 05:54:31,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2023-11-29 05:54:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:54:31,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:31,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:31,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:54:31,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:31,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:31,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:31,434 INFO L85 PathProgramCache]: Analyzing trace with hash 473675319, now seen corresponding path program 1 times [2023-11-29 05:54:31,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:31,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18661493] [2023-11-29 05:54:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:31,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:31,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658657656] [2023-11-29 05:54:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:31,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:31,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:31,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:31,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:54:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:31,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:54:31,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:31,682 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:54:31,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:54:31,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18661493] [2023-11-29 05:54:31,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658657656] [2023-11-29 05:54:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658657656] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:31,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:31,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-29 05:54:31,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532243405] [2023-11-29 05:54:31,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:31,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:31,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:31,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:54:31,861 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:31,928 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2023-11-29 05:54:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:31,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-29 05:54:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:31,930 INFO L225 Difference]: With dead ends: 94 [2023-11-29 05:54:31,931 INFO L226 Difference]: Without dead ends: 93 [2023-11-29 05:54:31,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:54:31,932 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 95 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:31,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 69 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-29 05:54:31,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-29 05:54:31,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 77 states have internal predecessors, (85), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2023-11-29 05:54:31,948 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 39 [2023-11-29 05:54:31,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:31,949 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2023-11-29 05:54:31,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2023-11-29 05:54:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:54:31,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:31,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:31,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:32,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:32,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash 473676697, now seen corresponding path program 1 times [2023-11-29 05:54:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:32,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859709172] [2023-11-29 05:54:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:32,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:32,172 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:32,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000808095] [2023-11-29 05:54:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:32,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:32,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:32,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:32,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:54:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:32,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:54:32,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:54:32,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859709172] [2023-11-29 05:54:32,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000808095] [2023-11-29 05:54:32,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000808095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:32,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:32,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606873171] [2023-11-29 05:54:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:32,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:32,267 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:32,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:32,316 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2023-11-29 05:54:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:32,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-29 05:54:32,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:32,318 INFO L225 Difference]: With dead ends: 105 [2023-11-29 05:54:32,318 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 05:54:32,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 05:54:32,320 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:32,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:32,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 05:54:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2023-11-29 05:54:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2023-11-29 05:54:32,335 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 39 [2023-11-29 05:54:32,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:32,335 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2023-11-29 05:54:32,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:32,336 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2023-11-29 05:54:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 05:54:32,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:32,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:32,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:54:32,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:32,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:32,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1799033082, now seen corresponding path program 1 times [2023-11-29 05:54:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:32,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266540854] [2023-11-29 05:54:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:32,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:32,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:32,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025788573] [2023-11-29 05:54:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:32,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:32,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:32,558 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:32,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:54:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:32,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:54:32,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:54:32,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:54:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266540854] [2023-11-29 05:54:32,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025788573] [2023-11-29 05:54:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025788573] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:32,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-29 05:54:32,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812485069] [2023-11-29 05:54:32,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:32,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:32,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:54:32,918 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:32,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:32,977 INFO L93 Difference]: Finished difference Result 95 states and 112 transitions. [2023-11-29 05:54:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:32,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-29 05:54:32,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:32,979 INFO L225 Difference]: With dead ends: 95 [2023-11-29 05:54:32,979 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 05:54:32,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:54:32,981 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 47 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:32,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:32,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 05:54:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-29 05:54:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 78 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2023-11-29 05:54:32,995 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 40 [2023-11-29 05:54:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:32,996 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2023-11-29 05:54:32,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2023-11-29 05:54:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 05:54:32,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:32,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:33,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:54:33,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:33,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:33,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash -64549223, now seen corresponding path program 1 times [2023-11-29 05:54:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206250416] [2023-11-29 05:54:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:33,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8047077] [2023-11-29 05:54:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:33,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:33,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:33,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:33,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:54:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:33,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:54:33,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:54:33,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:33,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206250416] [2023-11-29 05:54:33,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:33,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8047077] [2023-11-29 05:54:33,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8047077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:33,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:33,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549806246] [2023-11-29 05:54:33,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:33,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:33,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:54:33,303 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:33,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:33,379 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2023-11-29 05:54:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:33,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2023-11-29 05:54:33,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:33,381 INFO L225 Difference]: With dead ends: 128 [2023-11-29 05:54:33,381 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 05:54:33,381 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 05:54:33,382 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 81 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:33,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 95 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 05:54:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 109. [2023-11-29 05:54:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:54:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2023-11-29 05:54:33,398 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 41 [2023-11-29 05:54:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:33,399 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2023-11-29 05:54:33,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:54:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2023-11-29 05:54:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 05:54:33,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:33,400 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:33,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:54:33,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:54:33,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:33,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:33,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2001025828, now seen corresponding path program 1 times [2023-11-29 05:54:33,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:33,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989966628] [2023-11-29 05:54:33,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:33,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:33,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:33,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15918929] [2023-11-29 05:54:33,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:33,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:33,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:33,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:33,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:54:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:33,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:54:33,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:54:33,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:33,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:33,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989966628] [2023-11-29 05:54:33,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:33,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15918929] [2023-11-29 05:54:33,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15918929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:33,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:33,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:54:33,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423460939] [2023-11-29 05:54:33,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:33,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:54:33,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:33,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:54:33,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:54:33,974 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:54:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:34,234 INFO L93 Difference]: Finished difference Result 118 states and 141 transitions. [2023-11-29 05:54:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:54:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2023-11-29 05:54:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:34,236 INFO L225 Difference]: With dead ends: 118 [2023-11-29 05:54:34,236 INFO L226 Difference]: Without dead ends: 117 [2023-11-29 05:54:34,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:54:34,238 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 96 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:34,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 192 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:54:34,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-29 05:54:34,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 109. [2023-11-29 05:54:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 91 states have internal predecessors, (103), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:54:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2023-11-29 05:54:34,252 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 42 [2023-11-29 05:54:34,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:34,253 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2023-11-29 05:54:34,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:54:34,253 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2023-11-29 05:54:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 05:54:34,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:34,255 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:34,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:54:34,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:54:34,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:34,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash -573724229, now seen corresponding path program 1 times [2023-11-29 05:54:34,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:34,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829114229] [2023-11-29 05:54:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:34,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:34,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:34,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615420246] [2023-11-29 05:54:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:34,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:34,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:34,474 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:34,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:54:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:34,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:34,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 05:54:34,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:34,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:34,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829114229] [2023-11-29 05:54:34,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:34,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615420246] [2023-11-29 05:54:34,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615420246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:54:34,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744313317] [2023-11-29 05:54:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:54:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:54:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:54:34,664 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:34,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:34,815 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2023-11-29 05:54:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:54:34,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2023-11-29 05:54:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:34,817 INFO L225 Difference]: With dead ends: 128 [2023-11-29 05:54:34,817 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 05:54:34,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:54:34,818 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 114 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:34,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 201 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 05:54:34,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2023-11-29 05:54:34,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 95 states have internal predecessors, (107), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 05:54:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2023-11-29 05:54:34,831 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 53 [2023-11-29 05:54:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2023-11-29 05:54:34,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:34,832 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2023-11-29 05:54:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 05:54:34,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:34,833 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:34,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:54:35,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 05:54:35,035 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:35,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash -605581863, now seen corresponding path program 1 times [2023-11-29 05:54:35,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:35,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356568463] [2023-11-29 05:54:35,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:35,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:35,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136170116] [2023-11-29 05:54:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:35,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:35,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:35,049 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:35,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:54:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:35,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:35,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 05:54:35,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356568463] [2023-11-29 05:54:35,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136170116] [2023-11-29 05:54:35,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136170116] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:35,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:35,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:54:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875893058] [2023-11-29 05:54:35,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:35,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:54:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:54:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:54:35,367 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:35,574 INFO L93 Difference]: Finished difference Result 193 states and 239 transitions. [2023-11-29 05:54:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:54:35,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2023-11-29 05:54:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:35,578 INFO L225 Difference]: With dead ends: 193 [2023-11-29 05:54:35,578 INFO L226 Difference]: Without dead ends: 189 [2023-11-29 05:54:35,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:54:35,579 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 243 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:35,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 176 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:54:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-29 05:54:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 173. [2023-11-29 05:54:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 144 states have internal predecessors, (174), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:54:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 226 transitions. [2023-11-29 05:54:35,602 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 226 transitions. Word has length 54 [2023-11-29 05:54:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:35,603 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 226 transitions. [2023-11-29 05:54:35,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 226 transitions. [2023-11-29 05:54:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:54:35,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:35,605 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:35,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:54:35,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:35,811 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:35,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash -192611429, now seen corresponding path program 1 times [2023-11-29 05:54:35,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:35,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100655195] [2023-11-29 05:54:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:35,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:35,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:35,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102397244] [2023-11-29 05:54:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:35,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:35,824 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:35,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:54:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:35,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:54:35,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 05:54:35,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100655195] [2023-11-29 05:54:35,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:35,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102397244] [2023-11-29 05:54:35,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102397244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:35,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:35,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73412771] [2023-11-29 05:54:35,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:35,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:35,906 INFO L87 Difference]: Start difference. First operand 173 states and 226 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:35,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:35,958 INFO L93 Difference]: Finished difference Result 197 states and 249 transitions. [2023-11-29 05:54:35,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:35,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-11-29 05:54:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:35,961 INFO L225 Difference]: With dead ends: 197 [2023-11-29 05:54:35,961 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 05:54:35,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 05:54:35,962 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 31 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:35,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 97 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 05:54:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 175. [2023-11-29 05:54:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.3643410852713178) internal successors, (176), 146 states have internal predecessors, (176), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:54:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 228 transitions. [2023-11-29 05:54:35,978 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 228 transitions. Word has length 56 [2023-11-29 05:54:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:35,979 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 228 transitions. [2023-11-29 05:54:35,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:35,979 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 228 transitions. [2023-11-29 05:54:35,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 05:54:35,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:35,980 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:35,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:54:36,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:36,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:36,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:36,181 INFO L85 PathProgramCache]: Analyzing trace with hash -415985539, now seen corresponding path program 1 times [2023-11-29 05:54:36,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:36,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736898676] [2023-11-29 05:54:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:36,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:36,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215393023] [2023-11-29 05:54:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:36,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:36,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:36,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:36,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:54:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:36,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:54:36,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 05:54:36,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736898676] [2023-11-29 05:54:36,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215393023] [2023-11-29 05:54:36,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215393023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:36,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457766413] [2023-11-29 05:54:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:36,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:54:36,294 INFO L87 Difference]: Start difference. First operand 175 states and 228 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:36,422 INFO L93 Difference]: Finished difference Result 190 states and 240 transitions. [2023-11-29 05:54:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:54:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-11-29 05:54:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:36,424 INFO L225 Difference]: With dead ends: 190 [2023-11-29 05:54:36,425 INFO L226 Difference]: Without dead ends: 189 [2023-11-29 05:54:36,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 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 05:54:36,426 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:36,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 133 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:36,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-29 05:54:36,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 176. [2023-11-29 05:54:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 147 states have internal predecessors, (177), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:54:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 229 transitions. [2023-11-29 05:54:36,447 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 229 transitions. Word has length 58 [2023-11-29 05:54:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:36,448 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 229 transitions. [2023-11-29 05:54:36,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 229 transitions. [2023-11-29 05:54:36,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:54:36,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:36,449 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:36,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:54:36,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:54:36,650 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:36,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:36,650 INFO L85 PathProgramCache]: Analyzing trace with hash -10649692, now seen corresponding path program 1 times [2023-11-29 05:54:36,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:36,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483978816] [2023-11-29 05:54:36,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:36,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:36,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134673741] [2023-11-29 05:54:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:36,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:36,663 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:36,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:54:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:36,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:54:36,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 05:54:36,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:36,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:36,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483978816] [2023-11-29 05:54:36,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:36,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134673741] [2023-11-29 05:54:36,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134673741] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:36,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:36,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:54:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127858731] [2023-11-29 05:54:36,882 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:36,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:54:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:54:36,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:54:36,884 INFO L87 Difference]: Start difference. First operand 176 states and 229 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:37,127 INFO L93 Difference]: Finished difference Result 181 states and 233 transitions. [2023-11-29 05:54:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:54:37,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 59 [2023-11-29 05:54:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:37,129 INFO L225 Difference]: With dead ends: 181 [2023-11-29 05:54:37,129 INFO L226 Difference]: Without dead ends: 166 [2023-11-29 05:54:37,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:54:37,130 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 72 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:37,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 202 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:54:37,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-29 05:54:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2023-11-29 05:54:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 139 states have internal predecessors, (168), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 05:54:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2023-11-29 05:54:37,149 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 59 [2023-11-29 05:54:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:37,150 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2023-11-29 05:54:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:54:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2023-11-29 05:54:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 05:54:37,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:37,151 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:37,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 05:54:37,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:37,352 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:37,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:37,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1887727782, now seen corresponding path program 1 times [2023-11-29 05:54:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:37,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796418778] [2023-11-29 05:54:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:37,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:37,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:37,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565273968] [2023-11-29 05:54:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:37,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:37,364 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:37,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:54:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:37,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:54:37,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 05:54:37,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 05:54:37,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:37,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796418778] [2023-11-29 05:54:37,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:37,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565273968] [2023-11-29 05:54:37,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565273968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:37,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:54:37,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948964130] [2023-11-29 05:54:37,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:37,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:54:37,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:37,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:54:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:54:37,510 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 05:54:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:37,665 INFO L93 Difference]: Finished difference Result 295 states and 363 transitions. [2023-11-29 05:54:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:54:37,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 62 [2023-11-29 05:54:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:37,668 INFO L225 Difference]: With dead ends: 295 [2023-11-29 05:54:37,668 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 05:54:37,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 05:54:37,670 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 154 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:37,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 209 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 05:54:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 233. [2023-11-29 05:54:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 177 states have (on average 1.3785310734463276) internal successors, (244), 194 states have internal predecessors, (244), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:54:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 316 transitions. [2023-11-29 05:54:37,698 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 316 transitions. Word has length 62 [2023-11-29 05:54:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:37,699 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 316 transitions. [2023-11-29 05:54:37,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 05:54:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 316 transitions. [2023-11-29 05:54:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 05:54:37,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:37,700 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 05:54:37,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:54:37,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:54:37,901 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:37,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 962448763, now seen corresponding path program 1 times [2023-11-29 05:54:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:37,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631361880] [2023-11-29 05:54:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:37,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:37,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498448642] [2023-11-29 05:54:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:37,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:37,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:37,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:37,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:54:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:37,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:37,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 05:54:38,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 05:54:38,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631361880] [2023-11-29 05:54:38,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498448642] [2023-11-29 05:54:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498448642] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:38,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:38,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2023-11-29 05:54:38,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717071077] [2023-11-29 05:54:38,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:38,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:54:38,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:54:38,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:54:38,643 INFO L87 Difference]: Start difference. First operand 233 states and 316 transitions. Second operand has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 05:54:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:39,042 INFO L93 Difference]: Finished difference Result 296 states and 389 transitions. [2023-11-29 05:54:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:54:39,043 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 65 [2023-11-29 05:54:39,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:39,045 INFO L225 Difference]: With dead ends: 296 [2023-11-29 05:54:39,045 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 05:54:39,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:54:39,046 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:39,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 223 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:54:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 05:54:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 230. [2023-11-29 05:54:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 176 states have (on average 1.3522727272727273) internal successors, (238), 193 states have internal predecessors, (238), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 05:54:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 306 transitions. [2023-11-29 05:54:39,066 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 306 transitions. Word has length 65 [2023-11-29 05:54:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:39,066 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 306 transitions. [2023-11-29 05:54:39,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 05:54:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 306 transitions. [2023-11-29 05:54:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 05:54:39,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:39,067 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:39,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:39,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 05:54:39,268 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:39,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash -341860360, now seen corresponding path program 2 times [2023-11-29 05:54:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111593657] [2023-11-29 05:54:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:39,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700776988] [2023-11-29 05:54:39,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:54:39,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:39,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:39,280 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:39,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:54:39,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:54:39,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:39,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:54:39,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:54:39,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 05:54:39,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:39,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111593657] [2023-11-29 05:54:39,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:39,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700776988] [2023-11-29 05:54:39,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700776988] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:39,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:39,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-29 05:54:39,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242813719] [2023-11-29 05:54:39,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:39,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:54:39,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:39,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:54:39,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:54:39,634 INFO L87 Difference]: Start difference. First operand 230 states and 306 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 7 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 05:54:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:39,947 INFO L93 Difference]: Finished difference Result 295 states and 365 transitions. [2023-11-29 05:54:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:54:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 7 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) Word has length 77 [2023-11-29 05:54:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:39,949 INFO L225 Difference]: With dead ends: 295 [2023-11-29 05:54:39,949 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 05:54:39,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:54:39,951 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 455 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:39,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 207 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:54:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 05:54:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 89. [2023-11-29 05:54:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 73 states have internal predecessors, (76), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2023-11-29 05:54:39,965 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 77 [2023-11-29 05:54:39,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:39,965 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2023-11-29 05:54:39,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 7 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 05:54:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2023-11-29 05:54:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 05:54:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:39,967 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:39,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:40,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:54:40,167 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:40,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:40,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1696171797, now seen corresponding path program 1 times [2023-11-29 05:54:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:40,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577839806] [2023-11-29 05:54:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:40,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:40,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737931370] [2023-11-29 05:54:40,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:40,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:40,177 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:40,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:54:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:40,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:54:40,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 05:54:40,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:40,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:40,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577839806] [2023-11-29 05:54:40,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:40,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737931370] [2023-11-29 05:54:40,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737931370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:40,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:40,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:54:40,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816770487] [2023-11-29 05:54:40,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:40,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:54:40,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:40,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:54:40,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:40,426 INFO L87 Difference]: Start difference. First operand 89 states and 102 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:40,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:40,522 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2023-11-29 05:54:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:54:40,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-11-29 05:54:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:40,524 INFO L225 Difference]: With dead ends: 93 [2023-11-29 05:54:40,524 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 05:54:40,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:40,525 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 23 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:40,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 115 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 05:54:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2023-11-29 05:54:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 74 states have internal predecessors, (77), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2023-11-29 05:54:40,541 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 86 [2023-11-29 05:54:40,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:40,542 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2023-11-29 05:54:40,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2023-11-29 05:54:40,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 05:54:40,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:40,543 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:40,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:40,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 05:54:40,746 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:40,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1041718040, now seen corresponding path program 1 times [2023-11-29 05:54:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:40,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666835910] [2023-11-29 05:54:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:40,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:40,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65502513] [2023-11-29 05:54:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:40,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:40,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:40,771 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:40,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:54:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:40,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:54:40,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 05:54:40,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:40,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666835910] [2023-11-29 05:54:40,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65502513] [2023-11-29 05:54:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65502513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:40,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:40,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:40,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724971562] [2023-11-29 05:54:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:40,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:40,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:40,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:54:40,944 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:41,003 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2023-11-29 05:54:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:54:41,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2023-11-29 05:54:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:41,005 INFO L225 Difference]: With dead ends: 92 [2023-11-29 05:54:41,005 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 05:54:41,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 05:54:41,006 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 19 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:41,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 87 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 05:54:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 05:54:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.21875) internal successors, (78), 75 states have internal predecessors, (78), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2023-11-29 05:54:41,025 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 87 [2023-11-29 05:54:41,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:41,026 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2023-11-29 05:54:41,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:54:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2023-11-29 05:54:41,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 05:54:41,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:41,027 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:41,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 05:54:41,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 05:54:41,228 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:41,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:41,229 INFO L85 PathProgramCache]: Analyzing trace with hash -363654006, now seen corresponding path program 1 times [2023-11-29 05:54:41,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:41,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620847581] [2023-11-29 05:54:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:41,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:41,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:41,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166432014] [2023-11-29 05:54:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:41,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:41,242 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:41,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:54:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:41,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:54:41,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 05:54:41,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:42,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:42,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620847581] [2023-11-29 05:54:42,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:42,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166432014] [2023-11-29 05:54:42,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166432014] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:42,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:42,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:54:42,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200559877] [2023-11-29 05:54:42,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:42,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:54:42,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:42,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:54:42,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:54:42,496 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:54:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:43,010 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2023-11-29 05:54:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:54:43,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 89 [2023-11-29 05:54:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:43,012 INFO L225 Difference]: With dead ends: 141 [2023-11-29 05:54:43,012 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 05:54:43,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:54:43,013 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 133 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:43,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 260 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:54:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 05:54:43,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 93. [2023-11-29 05:54:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 77 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2023-11-29 05:54:43,030 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 89 [2023-11-29 05:54:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:43,030 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2023-11-29 05:54:43,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:54:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2023-11-29 05:54:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 05:54:43,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:43,032 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:43,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 05:54:43,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:43,232 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:43,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:43,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627783, now seen corresponding path program 1 times [2023-11-29 05:54:43,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:43,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732332662] [2023-11-29 05:54:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:43,241 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:43,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15054766] [2023-11-29 05:54:43,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:43,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:43,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:43,243 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:43,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:54:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:43,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:54:43,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 05:54:43,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:44,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:44,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732332662] [2023-11-29 05:54:44,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:44,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15054766] [2023-11-29 05:54:44,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15054766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:44,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:44,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:54:44,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493711018] [2023-11-29 05:54:44,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:44,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:54:44,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:44,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:54:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:54:44,739 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:54:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:45,084 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2023-11-29 05:54:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:54:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2023-11-29 05:54:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:45,086 INFO L225 Difference]: With dead ends: 130 [2023-11-29 05:54:45,087 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 05:54:45,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:54:45,088 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:45,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 198 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:54:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 05:54:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 94. [2023-11-29 05:54:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.208955223880597) internal successors, (81), 78 states have internal predecessors, (81), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2023-11-29 05:54:45,103 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 90 [2023-11-29 05:54:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:45,104 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2023-11-29 05:54:45,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:54:45,105 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2023-11-29 05:54:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 05:54:45,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:45,106 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:45,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:54:45,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:45,312 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:45,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146196, now seen corresponding path program 1 times [2023-11-29 05:54:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261084394] [2023-11-29 05:54:45,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:45,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:45,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344191351] [2023-11-29 05:54:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:45,326 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:45,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:54:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:45,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:54:45,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 05:54:45,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261084394] [2023-11-29 05:54:45,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344191351] [2023-11-29 05:54:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344191351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:54:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247372281] [2023-11-29 05:54:45,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:45,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:54:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:45,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:54:45,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:45,416 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 05:54:45,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:45,583 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2023-11-29 05:54:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:54:45,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 91 [2023-11-29 05:54:45,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:45,584 INFO L225 Difference]: With dead ends: 94 [2023-11-29 05:54:45,584 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 05:54:45,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:54:45,585 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 73 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:45,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 81 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 05:54:45,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-11-29 05:54:45,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.164179104477612) internal successors, (78), 76 states have internal predecessors, (78), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 05:54:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2023-11-29 05:54:45,601 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 91 [2023-11-29 05:54:45,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:45,601 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2023-11-29 05:54:45,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 05:54:45,602 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2023-11-29 05:54:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 05:54:45,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:45,603 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:45,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:54:45,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 05:54:45,803 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:45,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:45,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1708891735, now seen corresponding path program 1 times [2023-11-29 05:54:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897378786] [2023-11-29 05:54:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:45,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:45,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217896971] [2023-11-29 05:54:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:45,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:45,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:45,816 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:45,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:54:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:45,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:45,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 05:54:46,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 05:54:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897378786] [2023-11-29 05:54:46,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217896971] [2023-11-29 05:54:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217896971] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:46,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:46,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-11-29 05:54:46,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516575576] [2023-11-29 05:54:46,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:46,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:54:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:54:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:54:46,686 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 05:54:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:49,070 INFO L93 Difference]: Finished difference Result 322 states and 360 transitions. [2023-11-29 05:54:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 05:54:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 92 [2023-11-29 05:54:49,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:49,072 INFO L225 Difference]: With dead ends: 322 [2023-11-29 05:54:49,072 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 05:54:49,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=382, Invalid=1258, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 05:54:49,074 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 648 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:49,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 400 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:54:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 05:54:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 176. [2023-11-29 05:54:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 150 states have internal predecessors, (175), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 05:54:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2023-11-29 05:54:49,094 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 92 [2023-11-29 05:54:49,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:49,094 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2023-11-29 05:54:49,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 05:54:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2023-11-29 05:54:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 05:54:49,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:49,095 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 05:54:49,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:49,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 05:54:49,296 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:49,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:49,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2086556248, now seen corresponding path program 1 times [2023-11-29 05:54:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987429667] [2023-11-29 05:54:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:49,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:49,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389495340] [2023-11-29 05:54:49,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:49,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:49,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:49,306 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:54:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:49,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:49,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:54:49,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:50,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:50,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987429667] [2023-11-29 05:54:50,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:50,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389495340] [2023-11-29 05:54:50,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389495340] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:50,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:50,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:54:50,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746007924] [2023-11-29 05:54:50,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:50,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:54:50,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:50,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:54:50,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:54:50,871 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 05:54:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:51,319 INFO L93 Difference]: Finished difference Result 196 states and 243 transitions. [2023-11-29 05:54:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:54:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 106 [2023-11-29 05:54:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:51,321 INFO L225 Difference]: With dead ends: 196 [2023-11-29 05:54:51,321 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 05:54:51,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:54:51,322 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 40 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 225 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:54:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 05:54:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 187. [2023-11-29 05:54:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 150 states have (on average 1.2333333333333334) internal successors, (185), 159 states have internal predecessors, (185), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:54:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 235 transitions. [2023-11-29 05:54:51,352 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 235 transitions. Word has length 106 [2023-11-29 05:54:51,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:51,352 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 235 transitions. [2023-11-29 05:54:51,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 05:54:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 235 transitions. [2023-11-29 05:54:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 05:54:51,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:51,354 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 05:54:51,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:54:51,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 05:54:51,554 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:51,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:51,555 INFO L85 PathProgramCache]: Analyzing trace with hash -258734123, now seen corresponding path program 1 times [2023-11-29 05:54:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:51,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53935797] [2023-11-29 05:54:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:51,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:51,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:51,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123654860] [2023-11-29 05:54:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:51,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:51,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:51,564 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:51,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:54:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:51,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 05:54:51,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 05:54:52,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:53,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:53,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53935797] [2023-11-29 05:54:53,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:53,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123654860] [2023-11-29 05:54:53,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123654860] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:53,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:53,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:54:53,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418990764] [2023-11-29 05:54:53,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:53,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:54:53,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:53,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:54:53,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:54:53,160 INFO L87 Difference]: Start difference. First operand 187 states and 235 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:54:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:53,816 INFO L93 Difference]: Finished difference Result 195 states and 242 transitions. [2023-11-29 05:54:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:54:53,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 107 [2023-11-29 05:54:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:53,818 INFO L225 Difference]: With dead ends: 195 [2023-11-29 05:54:53,819 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 05:54:53,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2023-11-29 05:54:53,820 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 98 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:53,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 369 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:54:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 05:54:53,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2023-11-29 05:54:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 151 states have (on average 1.2317880794701987) internal successors, (186), 160 states have internal predecessors, (186), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:54:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2023-11-29 05:54:53,849 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 107 [2023-11-29 05:54:53,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:53,850 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2023-11-29 05:54:53,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:54:53,851 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2023-11-29 05:54:53,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 05:54:53,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:53,852 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 05:54:53,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 05:54:54,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 05:54:54,052 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:54,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash 569176906, now seen corresponding path program 1 times [2023-11-29 05:54:54,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:54,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183934561] [2023-11-29 05:54:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:54,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:54,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563666230] [2023-11-29 05:54:54,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:54,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:54,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:54,063 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:54,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:54:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:54,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:54:54,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-29 05:54:54,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:54,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:54,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183934561] [2023-11-29 05:54:54,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:54,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563666230] [2023-11-29 05:54:54,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563666230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:54,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:54,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:54:54,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029726518] [2023-11-29 05:54:54,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:54,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:54:54,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:54:54,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:54,152 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 05:54:54,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:54,439 INFO L93 Difference]: Finished difference Result 188 states and 236 transitions. [2023-11-29 05:54:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:54:54,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2023-11-29 05:54:54,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:54,441 INFO L225 Difference]: With dead ends: 188 [2023-11-29 05:54:54,441 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 05:54:54,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:54:54,442 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 40 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:54,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 116 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:54:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 05:54:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-29 05:54:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 151 states have (on average 1.2251655629139073) internal successors, (185), 159 states have internal predecessors, (185), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:54:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 235 transitions. [2023-11-29 05:54:54,464 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 235 transitions. Word has length 108 [2023-11-29 05:54:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:54,465 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 235 transitions. [2023-11-29 05:54:54,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 05:54:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 235 transitions. [2023-11-29 05:54:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 05:54:54,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:54,467 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 05:54:54,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:54,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:54:54,667 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:54,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:54,668 INFO L85 PathProgramCache]: Analyzing trace with hash 464615031, now seen corresponding path program 1 times [2023-11-29 05:54:54,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:54,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891640916] [2023-11-29 05:54:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:54,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:54,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:54,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857036186] [2023-11-29 05:54:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:54,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:54,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:54,677 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:54,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:54:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:54,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:54:54,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 05:54:55,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:55,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891640916] [2023-11-29 05:54:55,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:55,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857036186] [2023-11-29 05:54:55,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857036186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:55,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:55,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:54:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184345403] [2023-11-29 05:54:55,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:54:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:54:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:54:55,366 INFO L87 Difference]: Start difference. First operand 187 states and 235 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:54:56,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:56,528 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2023-11-29 05:54:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:54:56,529 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 109 [2023-11-29 05:54:56,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:56,530 INFO L225 Difference]: With dead ends: 216 [2023-11-29 05:54:56,530 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 05:54:56,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:54:56,531 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 129 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:56,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 445 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:54:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 05:54:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 185. [2023-11-29 05:54:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 149 states have (on average 1.221476510067114) internal successors, (182), 157 states have internal predecessors, (182), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:54:56,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 232 transitions. [2023-11-29 05:54:56,550 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 232 transitions. Word has length 109 [2023-11-29 05:54:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:56,550 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 232 transitions. [2023-11-29 05:54:56,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:54:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 232 transitions. [2023-11-29 05:54:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 05:54:56,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:56,551 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:56,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 05:54:56,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:54:56,752 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:54:56,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:56,752 INFO L85 PathProgramCache]: Analyzing trace with hash 231468413, now seen corresponding path program 1 times [2023-11-29 05:54:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702204723] [2023-11-29 05:54:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:56,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:56,760 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:54:56,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694345682] [2023-11-29 05:54:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:56,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:56,761 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:56,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:54:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:56,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:54:56,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:54:56,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:55:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:55:00,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:00,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702204723] [2023-11-29 05:55:00,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:55:00,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694345682] [2023-11-29 05:55:00,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694345682] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:55:00,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:55:00,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 11 [2023-11-29 05:55:00,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234537039] [2023-11-29 05:55:00,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:55:00,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:55:00,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:00,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:55:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:55:00,171 INFO L87 Difference]: Start difference. First operand 185 states and 232 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 05:55:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:00,296 INFO L93 Difference]: Finished difference Result 185 states and 232 transitions. [2023-11-29 05:55:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:55:00,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 113 [2023-11-29 05:55:00,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:00,297 INFO L225 Difference]: With dead ends: 185 [2023-11-29 05:55:00,298 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 05:55:00,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:55:00,298 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 16 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:00,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 252 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:55:00,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 05:55:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-29 05:55:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 149 states have (on average 1.167785234899329) internal successors, (174), 155 states have internal predecessors, (174), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:55:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2023-11-29 05:55:00,317 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 113 [2023-11-29 05:55:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2023-11-29 05:55:00,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 05:55:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2023-11-29 05:55:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 05:55:00,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:00,319 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:00,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 05:55:00,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 05:55:00,519 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:55:00,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:00,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1414413674, now seen corresponding path program 1 times [2023-11-29 05:55:00,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:00,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801510462] [2023-11-29 05:55:00,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:00,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:00,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:55:00,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575017566] [2023-11-29 05:55:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:00,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:00,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:00,530 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:55:00,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:55:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:00,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:55:00,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:55:00,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:55:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:55:02,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801510462] [2023-11-29 05:55:02,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:55:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575017566] [2023-11-29 05:55:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575017566] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:55:02,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:55:02,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:55:02,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502524712] [2023-11-29 05:55:02,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:55:02,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:55:02,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:02,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:55:02,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:55:02,287 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 05:55:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:02,419 INFO L93 Difference]: Finished difference Result 183 states and 224 transitions. [2023-11-29 05:55:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:55:02,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 114 [2023-11-29 05:55:02,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:02,421 INFO L225 Difference]: With dead ends: 183 [2023-11-29 05:55:02,421 INFO L226 Difference]: Without dead ends: 174 [2023-11-29 05:55:02,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:55:02,422 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 53 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:02,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 232 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:55:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-29 05:55:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2023-11-29 05:55:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 137 states have (on average 1.0656934306569343) internal successors, (146), 138 states have internal predecessors, (146), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 05:55:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 192 transitions. [2023-11-29 05:55:02,451 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 192 transitions. Word has length 114 [2023-11-29 05:55:02,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:02,451 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 192 transitions. [2023-11-29 05:55:02,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 05:55:02,452 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 192 transitions. [2023-11-29 05:55:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 05:55:02,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:02,453 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:02,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 05:55:02,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 05:55:02,654 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 05:55:02,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2076949626, now seen corresponding path program 1 times [2023-11-29 05:55:02,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:02,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077101042] [2023-11-29 05:55:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:02,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:02,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:55:02,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707377317] [2023-11-29 05:55:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:02,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:02,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:02,668 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:55:02,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 05:55:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:02,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:55:02,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 116 proven. 17 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-29 05:55:02,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:55:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 36 proven. 17 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-29 05:55:02,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:02,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077101042] [2023-11-29 05:55:02,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:55:02,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707377317] [2023-11-29 05:55:02,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707377317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:55:02,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:55:02,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 05:55:02,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26996030] [2023-11-29 05:55:02,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:55:02,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:55:02,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:02,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:55:02,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:55:02,938 INFO L87 Difference]: Start difference. First operand 164 states and 192 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 05:55:02,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:02,987 INFO L93 Difference]: Finished difference Result 178 states and 207 transitions. [2023-11-29 05:55:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:55:02,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 139 [2023-11-29 05:55:02,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:02,988 INFO L225 Difference]: With dead ends: 178 [2023-11-29 05:55:02,988 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:55:02,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:55:02,989 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:02,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:55:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:55:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:55:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 05:55:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:55:02,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2023-11-29 05:55:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:02,991 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:55:02,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 05:55:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:55:02,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:55:02,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-29 05:55:02,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-29 05:55:02,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-29 05:55:02,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-29 05:55:02,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-29 05:55:03,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 05:55:03,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:55:03,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:55:03,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-29 05:55:03,612 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,612 INFO L899 garLoopResultBuilder]: For program point L60-1(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,612 INFO L899 garLoopResultBuilder]: For program point L60-2(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,612 INFO L902 garLoopResultBuilder]: At program point L60-3(line 60) the Hoare annotation is: true [2023-11-29 05:55:03,613 INFO L902 garLoopResultBuilder]: At program point L60-4(line 60) the Hoare annotation is: true [2023-11-29 05:55:03,613 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-29 05:55:03,613 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-29 05:55:03,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-29 05:55:03,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,613 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 (<= |ULTIMATE.start_main_~r~0#1| 1) (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 .cse2) (and .cse0 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-29 05:55:03,614 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1) [2023-11-29 05:55:03,614 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (and (<= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1) (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-29 05:55:03,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,615 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 (<= |ULTIMATE.start_main_~r~0#1| 1) (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 .cse2) (and .cse0 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,615 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 (<= |ULTIMATE.start_main_~r~0#1| 1) (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 .cse2) (and .cse0 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,615 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 05:55:03,615 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-29 05:55:03,615 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2023-11-29 05:55:03,615 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 05:55:03,615 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 46 58) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~d~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 .cse3 .cse4 .cse5) (and .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 .cse5 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,616 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L899 garLoopResultBuilder]: For program point L47-2(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L899 garLoopResultBuilder]: For program point L47-3(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L895 garLoopResultBuilder]: At program point L47-4(line 47) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~d~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 .cse3 .cse4 .cse5) (and .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 .cse5 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L899 garLoopResultBuilder]: For program point L47-5(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-29 05:55:03,617 INFO L895 garLoopResultBuilder]: At program point L39-1(line 39) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 (<= |ULTIMATE.start_main_~r~0#1| 1) (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 .cse2) (and .cse0 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 36 44) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point L56-1(line 56) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~d~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 .cse3 .cse4 .cse5) (and .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 .cse5 (= |ULTIMATE.start_main_~r~0#1| 1) (= 2 |ULTIMATE.start_main_~d~0#1|)))) [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point L48-2(lines 46 58) no Hoare annotation was computed. [2023-11-29 05:55:03,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-29 05:55:03,619 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L902 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-29 05:55:03,620 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-11-29 05:55:03,621 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-29 05:55:03,621 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-29 05:55:03,624 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-29 05:55:03,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:55:03,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:55:03 BoogieIcfgContainer [2023-11-29 05:55:03,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:55:03,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:55:03,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:55:03,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:55:03,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:29" (3/4) ... [2023-11-29 05:55:03,643 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:55:03,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 05:55:03,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 05:55:03,652 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 05:55:03,652 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 05:55:03,653 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:55:03,653 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:55:03,747 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:55:03,747 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:55:03,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:55:03,748 INFO L158 Benchmark]: Toolchain (without parser) took 34821.44ms. Allocated memory was 169.9MB in the beginning and 249.6MB in the end (delta: 79.7MB). Free memory was 125.5MB in the beginning and 148.2MB in the end (delta: -22.7MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,749 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:55:03,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.65ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 114.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.51ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,750 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 169.9MB. Free memory was 112.5MB in the beginning and 110.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,750 INFO L158 Benchmark]: RCFGBuilder took 440.51ms. Allocated memory is still 169.9MB. Free memory was 110.8MB in the beginning and 93.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,751 INFO L158 Benchmark]: TraceAbstraction took 33936.05ms. Allocated memory was 169.9MB in the beginning and 249.6MB in the end (delta: 79.7MB). Free memory was 92.8MB in the beginning and 153.4MB in the end (delta: -60.6MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,751 INFO L158 Benchmark]: Witness Printer took 107.56ms. Allocated memory is still 249.6MB. Free memory was 153.4MB in the beginning and 148.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:55:03,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.65ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 114.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.51ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 169.9MB. Free memory was 112.5MB in the beginning and 110.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.51ms. Allocated memory is still 169.9MB. Free memory was 110.8MB in the beginning and 93.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 33936.05ms. Allocated memory was 169.9MB in the beginning and 249.6MB in the end (delta: 79.7MB). Free memory was 92.8MB in the beginning and 153.4MB in the end (delta: -60.6MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Witness Printer took 107.56ms. Allocated memory is still 249.6MB. Free memory was 153.4MB in the beginning and 148.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 33.9s, OverallIterations: 29, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3183 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3080 mSDsluCounter, 5272 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3740 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4891 IncrementalHoareTripleChecker+Invalid, 5219 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 1532 mSDtfsCounter, 4891 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3009 GetRequests, 2735 SyntacticMatches, 4 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=14, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 29 MinimizatonAttempts, 441 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 79 PreInvPairs, 100 NumberOfFragments, 416 HoareAnnotationTreeSize, 79 FomulaSimplifications, 10308 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 2126 NumberOfCodeBlocks, 2126 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2808 ConstructedInterpolants, 0 QuantifiedInterpolants, 17954 SizeOfPredicates, 60 NumberOfNonLiveVariables, 4183 ConjunctsInSsa, 254 ConjunctsInUnsatCore, 38 InterpolantComputations, 14 PerfectInterpolantSequences, 4116/4413 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((d == 1) && (p == 1)) && ((A % 4294967296) <= 1)) && ((B % 4294967296) == 1)) && (r == 0)) && (q == 1)) || (((((d == 1) && (p == 1)) && ((B % 4294967296) == 1)) && (r == 0)) && (q == 0))) || (((((((A % 4294967296) <= 1) && (2 == p)) && ((B % 4294967296) == 1)) && (q == 0)) && (r == 1)) && (2 == d))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((d == 1) && (p == 1)) && ((A % 4294967296) <= 1)) && (r <= 1)) && (0 <= r)) && ((B % 4294967296) == 1)) && (q == 0)) || (((((((A % 4294967296) <= 1) && (2 == p)) && ((B % 4294967296) == 1)) && (q == 0)) && (r == 1)) && (2 == d))) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:55:03,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e4a4ef-5995-45a7-bb46-5da059ff602c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE