./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC --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 d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:30:22,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:30:22,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:30:22,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:30:22,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:30:22,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:30:22,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:30:22,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:30:22,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:30:22,983 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:30:22,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:30:22,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:30:22,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:30:22,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:30:22,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:30:22,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:30:22,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:30:22,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:30:22,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:30:22,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:30:22,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:30:22,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:30:22,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:30:22,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:30:22,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:30:22,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:30:22,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:30:22,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:30:22,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:30:22,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:30:22,990 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:30:22,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:30:22,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:30:22,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:30:22,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:22,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:30:22,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:30:22,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:30:22,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:30:22,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:22,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:30:22,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:30:22,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:30:22,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:30:22,995 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC 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 -> d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e [2024-11-24 00:30:23,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:30:23,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:30:23,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:30:23,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:30:23,370 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:30:23,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2024-11-24 00:30:26,869 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/data/5422c233e/e19ee0f7d3cd464ea99f4563e643568e/FLAG0f371dfc7 [2024-11-24 00:30:27,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:30:27,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2024-11-24 00:30:27,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/data/5422c233e/e19ee0f7d3cd464ea99f4563e643568e/FLAG0f371dfc7 [2024-11-24 00:30:27,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/data/5422c233e/e19ee0f7d3cd464ea99f4563e643568e [2024-11-24 00:30:27,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:30:27,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:30:27,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:27,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:30:27,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:30:27,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea8cf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27, skipping insertion in model container [2024-11-24 00:30:27,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:30:27,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:27,619 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:30:27,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:27,677 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:30:27,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27 WrapperNode [2024-11-24 00:30:27,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:27,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:27,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:30:27,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:30:27,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,721 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-24 00:30:27,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:27,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:30:27,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:30:27,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:30:27,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,737 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,751 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]. [2024-11-24 00:30:27,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:30:27,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:30:27,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:30:27,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:30:27,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (1/1) ... [2024-11-24 00:30:27,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:27,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:27,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:30:27,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:30:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:30:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:30:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:30:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:30:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:30:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:30:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:30:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:30:27,947 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:30:27,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:30:28,496 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-24 00:30:28,496 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:30:28,511 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:30:28,512 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:30:28,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:28 BoogieIcfgContainer [2024-11-24 00:30:28,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:30:28,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:30:28,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:30:28,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:30:28,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:30:27" (1/3) ... [2024-11-24 00:30:28,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6634d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:28, skipping insertion in model container [2024-11-24 00:30:28,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:27" (2/3) ... [2024-11-24 00:30:28,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6634d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:28, skipping insertion in model container [2024-11-24 00:30:28,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:28" (3/3) ... [2024-11-24 00:30:28,526 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound20.c [2024-11-24 00:30:28,545 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:30:28,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound20.c that has 3 procedures, 112 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2024-11-24 00:30:28,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:30:28,655 INFO L333 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, 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;@4ae41e0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:30:28,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-24 00:30:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 61 states have (on average 1.819672131147541) internal successors, (111), 103 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:30:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 00:30:28,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:28,672 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:28,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:28,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 986928236, now seen corresponding path program 1 times [2024-11-24 00:30:28,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:28,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032524828] [2024-11-24 00:30:28,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:30:28,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:28,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032524828] [2024-11-24 00:30:28,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032524828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:28,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723100405] [2024-11-24 00:30:28,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:28,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:28,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:28,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:28,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:30:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:28,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:30:28,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:30:28,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:28,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723100405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:28,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:28,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:30:29,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444120332] [2024-11-24 00:30:29,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:29,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:30:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:29,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:30:29,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:30:29,040 INFO L87 Difference]: Start difference. First operand has 112 states, 61 states have (on average 1.819672131147541) internal successors, (111), 103 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-24 00:30:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:29,074 INFO L93 Difference]: Finished difference Result 220 states and 247 transitions. [2024-11-24 00:30:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:30:29,078 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 20 [2024-11-24 00:30:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:29,090 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:30:29,090 INFO L226 Difference]: Without dead ends: 105 [2024-11-24 00:30:29,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:30:29,097 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:29,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:30:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-24 00:30:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-24 00:30:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:30:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2024-11-24 00:30:29,159 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2024-11-24 00:30:29,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:29,161 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2024-11-24 00:30:29,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-24 00:30:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2024-11-24 00:30:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 00:30:29,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:29,165 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:29,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:29,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:30:29,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:29,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:29,372 INFO L85 PathProgramCache]: Analyzing trace with hash -425320086, now seen corresponding path program 1 times [2024-11-24 00:30:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256733209] [2024-11-24 00:30:29,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:29,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258961656] [2024-11-24 00:30:29,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:29,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:29,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:29,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:30:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:29,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:30:29,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:30:29,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:30:30,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256733209] [2024-11-24 00:30:30,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:30,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258961656] [2024-11-24 00:30:30,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258961656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:30,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:30,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-24 00:30:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989764712] [2024-11-24 00:30:30,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:30:30,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:30,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:30,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:30,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:30:30,041 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:30:30,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:30,661 INFO L93 Difference]: Finished difference Result 142 states and 166 transitions. [2024-11-24 00:30:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:30:30,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-11-24 00:30:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:30,664 INFO L225 Difference]: With dead ends: 142 [2024-11-24 00:30:30,664 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 00:30:30,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:30,665 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 282 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:30,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 206 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:30:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 00:30:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 126. [2024-11-24 00:30:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.7142857142857142) internal successors, (132), 116 states have internal predecessors, (132), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:30:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2024-11-24 00:30:30,698 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 20 [2024-11-24 00:30:30,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:30,700 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2024-11-24 00:30:30,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:30:30,700 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2024-11-24 00:30:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-24 00:30:30,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:30,701 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:30,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:30,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:30,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:30,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash -300020729, now seen corresponding path program 1 times [2024-11-24 00:30:30,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:30,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136726691] [2024-11-24 00:30:30,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:30,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384379453] [2024-11-24 00:30:30,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:30,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:30,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:30,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:30,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:30:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:31,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:30:31,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:31,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:31,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:31,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136726691] [2024-11-24 00:30:31,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:31,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384379453] [2024-11-24 00:30:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384379453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:31,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:31,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:30:31,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667198475] [2024-11-24 00:30:31,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:31,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:30:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:31,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:30:31,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:30:31,242 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:30:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:31,796 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2024-11-24 00:30:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:30:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-24 00:30:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:31,798 INFO L225 Difference]: With dead ends: 172 [2024-11-24 00:30:31,799 INFO L226 Difference]: Without dead ends: 155 [2024-11-24 00:30:31,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:30:31,800 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 436 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:31,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 197 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:30:31,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-24 00:30:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2024-11-24 00:30:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 103 states have (on average 1.6310679611650485) internal successors, (168), 140 states have internal predecessors, (168), 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) [2024-11-24 00:30:31,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2024-11-24 00:30:31,845 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 21 [2024-11-24 00:30:31,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:31,845 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2024-11-24 00:30:31,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:30:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2024-11-24 00:30:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 00:30:31,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:31,851 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:31,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:30:32,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:32,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:32,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash -710707956, now seen corresponding path program 1 times [2024-11-24 00:30:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:32,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216184973] [2024-11-24 00:30:32,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:32,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662136951] [2024-11-24 00:30:32,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:32,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:32,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:32,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:30:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:32,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:30:32,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:30:32,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:30:32,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:32,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216184973] [2024-11-24 00:30:32,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:32,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662136951] [2024-11-24 00:30:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662136951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:32,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:32,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-24 00:30:32,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148289240] [2024-11-24 00:30:32,585 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:30:32,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:32,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:32,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:32,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:30:32,587 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:30:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:33,063 INFO L93 Difference]: Finished difference Result 158 states and 190 transitions. [2024-11-24 00:30:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:30:33,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-24 00:30:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:33,066 INFO L225 Difference]: With dead ends: 158 [2024-11-24 00:30:33,066 INFO L226 Difference]: Without dead ends: 157 [2024-11-24 00:30:33,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:33,068 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 134 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:33,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 243 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-24 00:30:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-11-24 00:30:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 140 states have internal predecessors, (167), 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) [2024-11-24 00:30:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 183 transitions. [2024-11-24 00:30:33,082 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 183 transitions. Word has length 22 [2024-11-24 00:30:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:33,083 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 183 transitions. [2024-11-24 00:30:33,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:30:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 183 transitions. [2024-11-24 00:30:33,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-24 00:30:33,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:33,084 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:33,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:33,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:33,288 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:33,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash -557110103, now seen corresponding path program 1 times [2024-11-24 00:30:33,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540401317] [2024-11-24 00:30:33,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:33,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:33,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905206403] [2024-11-24 00:30:33,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:33,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:33,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:33,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:33,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:30:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:33,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:30:33,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:33,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:33,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540401317] [2024-11-24 00:30:33,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905206403] [2024-11-24 00:30:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905206403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:33,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:33,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:30:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152844185] [2024-11-24 00:30:33,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:33,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:30:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:33,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:30:33,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:30:33,607 INFO L87 Difference]: Start difference. First operand 151 states and 183 transitions. Second operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:30:34,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:34,087 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2024-11-24 00:30:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:30:34,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-11-24 00:30:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:34,089 INFO L225 Difference]: With dead ends: 158 [2024-11-24 00:30:34,089 INFO L226 Difference]: Without dead ends: 157 [2024-11-24 00:30:34,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:30:34,090 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 362 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:34,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 235 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-24 00:30:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-11-24 00:30:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 103 states have (on average 1.6116504854368932) internal successors, (166), 140 states have internal predecessors, (166), 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) [2024-11-24 00:30:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2024-11-24 00:30:34,117 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 23 [2024-11-24 00:30:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:34,118 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2024-11-24 00:30:34,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:30:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2024-11-24 00:30:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 00:30:34,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:34,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:34,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:30:34,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:34,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:34,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:34,324 INFO L85 PathProgramCache]: Analyzing trace with hash -90543954, now seen corresponding path program 1 times [2024-11-24 00:30:34,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:34,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949839549] [2024-11-24 00:30:34,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:34,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949839549] [2024-11-24 00:30:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949839549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:34,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:34,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:34,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662942250] [2024-11-24 00:30:34,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:34,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:34,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:34,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:34,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:34,444 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:30:34,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:34,967 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2024-11-24 00:30:34,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:34,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-24 00:30:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:34,970 INFO L225 Difference]: With dead ends: 219 [2024-11-24 00:30:34,970 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:30:34,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:34,971 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:34,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 186 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:30:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:30:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 168. [2024-11-24 00:30:34,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 119 states have (on average 1.596638655462185) internal successors, (190), 156 states have internal predecessors, (190), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:30:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2024-11-24 00:30:34,987 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 24 [2024-11-24 00:30:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:34,987 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2024-11-24 00:30:34,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:30:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2024-11-24 00:30:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 00:30:34,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:34,988 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:34,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:30:34,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:34,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1488104779, now seen corresponding path program 1 times [2024-11-24 00:30:34,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:34,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354432843] [2024-11-24 00:30:34,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:35,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:35,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354432843] [2024-11-24 00:30:35,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354432843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:35,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:35,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:35,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926242624] [2024-11-24 00:30:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:35,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:35,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:35,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:35,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:35,137 INFO L87 Difference]: Start difference. First operand 168 states and 208 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:30:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:35,623 INFO L93 Difference]: Finished difference Result 219 states and 260 transitions. [2024-11-24 00:30:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-24 00:30:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:35,625 INFO L225 Difference]: With dead ends: 219 [2024-11-24 00:30:35,625 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:30:35,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:35,627 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 79 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:35,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 157 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:30:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:30:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 168. [2024-11-24 00:30:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 119 states have (on average 1.5798319327731092) internal successors, (188), 156 states have internal predecessors, (188), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:30:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2024-11-24 00:30:35,659 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 25 [2024-11-24 00:30:35,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:35,660 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2024-11-24 00:30:35,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:30:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2024-11-24 00:30:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-24 00:30:35,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:35,662 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:35,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:30:35,662 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:35,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 754137428, now seen corresponding path program 1 times [2024-11-24 00:30:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095266918] [2024-11-24 00:30:35,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:35,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393708638] [2024-11-24 00:30:35,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:35,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:35,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:35,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:35,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:30:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:35,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:30:35,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:35,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095266918] [2024-11-24 00:30:35,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393708638] [2024-11-24 00:30:35,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393708638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:35,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:35,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559216666] [2024-11-24 00:30:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:35,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:35,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:35,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:35,897 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:36,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:36,168 INFO L93 Difference]: Finished difference Result 224 states and 283 transitions. [2024-11-24 00:30:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:36,169 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-24 00:30:36,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:36,170 INFO L225 Difference]: With dead ends: 224 [2024-11-24 00:30:36,171 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:30:36,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:36,172 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:36,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 119 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:30:36,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:30:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 204. [2024-11-24 00:30:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.577922077922078) internal successors, (243), 191 states have internal predecessors, (243), 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) [2024-11-24 00:30:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 263 transitions. [2024-11-24 00:30:36,210 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 263 transitions. Word has length 38 [2024-11-24 00:30:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:36,211 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 263 transitions. [2024-11-24 00:30:36,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 263 transitions. [2024-11-24 00:30:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 00:30:36,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:36,214 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:36,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:36,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-24 00:30:36,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:36,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:36,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1916814937, now seen corresponding path program 1 times [2024-11-24 00:30:36,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:36,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481945248] [2024-11-24 00:30:36,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:36,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:36,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566752157] [2024-11-24 00:30:36,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:36,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:36,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:36,489 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:36,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:30:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:36,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:30:36,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:36,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:36,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:36,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481945248] [2024-11-24 00:30:36,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:36,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566752157] [2024-11-24 00:30:36,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566752157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:36,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:36,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:36,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619125527] [2024-11-24 00:30:36,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:36,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:36,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:36,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:36,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:36,682 INFO L87 Difference]: Start difference. First operand 204 states and 263 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:36,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:36,985 INFO L93 Difference]: Finished difference Result 242 states and 315 transitions. [2024-11-24 00:30:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:36,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-24 00:30:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:36,987 INFO L225 Difference]: With dead ends: 242 [2024-11-24 00:30:36,988 INFO L226 Difference]: Without dead ends: 239 [2024-11-24 00:30:36,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:36,989 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:36,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 116 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:30:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-24 00:30:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 229. [2024-11-24 00:30:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 178 states have (on average 1.5786516853932584) internal successors, (281), 215 states have internal predecessors, (281), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:30:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 303 transitions. [2024-11-24 00:30:37,014 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 303 transitions. Word has length 39 [2024-11-24 00:30:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:37,014 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 303 transitions. [2024-11-24 00:30:37,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 303 transitions. [2024-11-24 00:30:37,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 00:30:37,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:37,019 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:37,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:37,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-24 00:30:37,220 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1903423883, now seen corresponding path program 1 times [2024-11-24 00:30:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331398480] [2024-11-24 00:30:37,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:37,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581813391] [2024-11-24 00:30:37,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:37,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:37,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:37,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:30:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:37,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:30:37,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:37,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:37,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:37,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:37,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331398480] [2024-11-24 00:30:37,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:37,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581813391] [2024-11-24 00:30:37,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581813391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:37,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:37,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:37,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100129412] [2024-11-24 00:30:37,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:37,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:37,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:37,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:37,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:37,485 INFO L87 Difference]: Start difference. First operand 229 states and 303 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:37,804 INFO L93 Difference]: Finished difference Result 297 states and 403 transitions. [2024-11-24 00:30:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:37,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-24 00:30:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:37,809 INFO L225 Difference]: With dead ends: 297 [2024-11-24 00:30:37,809 INFO L226 Difference]: Without dead ends: 291 [2024-11-24 00:30:37,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:37,810 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 202 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:37,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 84 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:30:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-24 00:30:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2024-11-24 00:30:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 221 states have (on average 1.6108597285067874) internal successors, (356), 258 states have internal predecessors, (356), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:37,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 380 transitions. [2024-11-24 00:30:37,839 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 380 transitions. Word has length 39 [2024-11-24 00:30:37,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:37,839 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 380 transitions. [2024-11-24 00:30:37,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 380 transitions. [2024-11-24 00:30:37,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-24 00:30:37,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:37,843 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:37,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:38,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 00:30:38,044 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash -708278985, now seen corresponding path program 1 times [2024-11-24 00:30:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021117173] [2024-11-24 00:30:38,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:38,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832258101] [2024-11-24 00:30:38,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:38,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:38,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:38,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:38,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:30:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:38,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:30:38,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:38,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:38,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:38,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021117173] [2024-11-24 00:30:38,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:38,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832258101] [2024-11-24 00:30:38,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832258101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:38,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:38,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:38,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565288877] [2024-11-24 00:30:38,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:38,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:38,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:38,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:38,294 INFO L87 Difference]: Start difference. First operand 273 states and 380 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:38,647 INFO L93 Difference]: Finished difference Result 289 states and 392 transitions. [2024-11-24 00:30:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-24 00:30:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:38,651 INFO L225 Difference]: With dead ends: 289 [2024-11-24 00:30:38,651 INFO L226 Difference]: Without dead ends: 285 [2024-11-24 00:30:38,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:38,652 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 193 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:38,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 86 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:30:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-24 00:30:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 269. [2024-11-24 00:30:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 217 states have (on average 1.5852534562211982) internal successors, (344), 254 states have internal predecessors, (344), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 368 transitions. [2024-11-24 00:30:38,678 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 368 transitions. Word has length 40 [2024-11-24 00:30:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:38,678 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 368 transitions. [2024-11-24 00:30:38,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 368 transitions. [2024-11-24 00:30:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-24 00:30:38,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:38,679 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:38,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:38,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:38,880 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:38,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1123401674, now seen corresponding path program 1 times [2024-11-24 00:30:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:38,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4050213] [2024-11-24 00:30:38,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4050213] [2024-11-24 00:30:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4050213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:39,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:39,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:39,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113148184] [2024-11-24 00:30:39,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:39,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:39,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:39,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:39,069 INFO L87 Difference]: Start difference. First operand 269 states and 368 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:39,303 INFO L93 Difference]: Finished difference Result 341 states and 453 transitions. [2024-11-24 00:30:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:39,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-24 00:30:39,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:39,307 INFO L225 Difference]: With dead ends: 341 [2024-11-24 00:30:39,307 INFO L226 Difference]: Without dead ends: 340 [2024-11-24 00:30:39,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:39,308 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 51 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:39,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 199 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:30:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-24 00:30:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 279. [2024-11-24 00:30:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 227 states have (on average 1.5726872246696035) internal successors, (357), 264 states have internal predecessors, (357), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 381 transitions. [2024-11-24 00:30:39,333 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 381 transitions. Word has length 40 [2024-11-24 00:30:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:39,333 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 381 transitions. [2024-11-24 00:30:39,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 381 transitions. [2024-11-24 00:30:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:30:39,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:39,335 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:39,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:30:39,335 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:39,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash -67643557, now seen corresponding path program 1 times [2024-11-24 00:30:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:39,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648242698] [2024-11-24 00:30:39,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:39,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648242698] [2024-11-24 00:30:39,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648242698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:39,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:39,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563064462] [2024-11-24 00:30:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:39,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:39,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:39,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:39,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:39,566 INFO L87 Difference]: Start difference. First operand 279 states and 381 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:40,253 INFO L93 Difference]: Finished difference Result 382 states and 544 transitions. [2024-11-24 00:30:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:30:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2024-11-24 00:30:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:40,257 INFO L225 Difference]: With dead ends: 382 [2024-11-24 00:30:40,257 INFO L226 Difference]: Without dead ends: 380 [2024-11-24 00:30:40,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:40,258 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 479 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:40,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 106 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:30:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-24 00:30:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 285. [2024-11-24 00:30:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 233 states have (on average 1.5622317596566524) internal successors, (364), 270 states have internal predecessors, (364), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2024-11-24 00:30:40,288 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 41 [2024-11-24 00:30:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:40,289 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2024-11-24 00:30:40,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2024-11-24 00:30:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:30:40,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:40,290 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:40,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:30:40,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:40,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash -481811941, now seen corresponding path program 1 times [2024-11-24 00:30:40,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:40,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888240402] [2024-11-24 00:30:40,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:40,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:40,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:40,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888240402] [2024-11-24 00:30:40,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888240402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:40,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:40,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789472123] [2024-11-24 00:30:40,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:40,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:40,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:40,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:40,417 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:40,653 INFO L93 Difference]: Finished difference Result 341 states and 449 transitions. [2024-11-24 00:30:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:40,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-24 00:30:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:40,656 INFO L225 Difference]: With dead ends: 341 [2024-11-24 00:30:40,656 INFO L226 Difference]: Without dead ends: 340 [2024-11-24 00:30:40,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:40,657 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 50 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:40,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 210 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:30:40,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-24 00:30:40,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2024-11-24 00:30:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 243 states have (on average 1.5555555555555556) internal successors, (378), 280 states have internal predecessors, (378), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 402 transitions. [2024-11-24 00:30:40,678 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 402 transitions. Word has length 41 [2024-11-24 00:30:40,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:40,679 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 402 transitions. [2024-11-24 00:30:40,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 402 transitions. [2024-11-24 00:30:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:30:40,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:40,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:40,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:30:40,681 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:40,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash -465713427, now seen corresponding path program 1 times [2024-11-24 00:30:40,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610947485] [2024-11-24 00:30:40,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:40,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:40,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:40,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610947485] [2024-11-24 00:30:40,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610947485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:40,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:40,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:40,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875442610] [2024-11-24 00:30:40,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:40,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:40,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:40,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:40,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:40,875 INFO L87 Difference]: Start difference. First operand 295 states and 402 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:41,601 INFO L93 Difference]: Finished difference Result 341 states and 447 transitions. [2024-11-24 00:30:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:41,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-24 00:30:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:41,604 INFO L225 Difference]: With dead ends: 341 [2024-11-24 00:30:41,604 INFO L226 Difference]: Without dead ends: 340 [2024-11-24 00:30:41,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:41,605 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 49 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:41,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:30:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-24 00:30:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 297. [2024-11-24 00:30:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 245 states have (on average 1.5510204081632653) internal successors, (380), 282 states have internal predecessors, (380), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:30:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 404 transitions. [2024-11-24 00:30:41,632 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 404 transitions. Word has length 41 [2024-11-24 00:30:41,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:41,632 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 404 transitions. [2024-11-24 00:30:41,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 404 transitions. [2024-11-24 00:30:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:30:41,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:41,633 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:41,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:30:41,634 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:41,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:41,634 INFO L85 PathProgramCache]: Analyzing trace with hash 33340455, now seen corresponding path program 1 times [2024-11-24 00:30:41,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:41,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363384836] [2024-11-24 00:30:41,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:41,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:41,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536919025] [2024-11-24 00:30:41,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:41,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:41,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:41,687 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:41,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:30:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:41,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:30:41,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:30:42,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:30:49,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363384836] [2024-11-24 00:30:49,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536919025] [2024-11-24 00:30:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536919025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:49,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:49,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-24 00:30:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353696559] [2024-11-24 00:30:49,497 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:30:49,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:30:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:49,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:30:49,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=172, Unknown=1, NotChecked=0, Total=240 [2024-11-24 00:30:49,503 INFO L87 Difference]: Start difference. First operand 297 states and 404 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:30:50,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:50,284 INFO L93 Difference]: Finished difference Result 419 states and 587 transitions. [2024-11-24 00:30:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:30:50,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 41 [2024-11-24 00:30:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:50,288 INFO L225 Difference]: With dead ends: 419 [2024-11-24 00:30:50,288 INFO L226 Difference]: Without dead ends: 390 [2024-11-24 00:30:50,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=122, Invalid=257, Unknown=1, NotChecked=0, Total=380 [2024-11-24 00:30:50,290 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 195 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:50,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 258 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:30:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-24 00:30:50,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 366. [2024-11-24 00:30:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 311 states have (on average 1.5144694533762058) internal successors, (471), 348 states have internal predecessors, (471), 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) [2024-11-24 00:30:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 501 transitions. [2024-11-24 00:30:50,311 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 501 transitions. Word has length 41 [2024-11-24 00:30:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:50,311 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 501 transitions. [2024-11-24 00:30:50,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:30:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 501 transitions. [2024-11-24 00:30:50,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 00:30:50,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:50,313 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:50,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:50,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:50,517 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:50,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2096950137, now seen corresponding path program 1 times [2024-11-24 00:30:50,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:50,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334649154] [2024-11-24 00:30:50,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:50,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334649154] [2024-11-24 00:30:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334649154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:50,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:50,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191806145] [2024-11-24 00:30:50,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:50,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:50,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:50,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:50,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:50,680 INFO L87 Difference]: Start difference. First operand 366 states and 501 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:51,134 INFO L93 Difference]: Finished difference Result 377 states and 513 transitions. [2024-11-24 00:30:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:30:51,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-11-24 00:30:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:51,137 INFO L225 Difference]: With dead ends: 377 [2024-11-24 00:30:51,137 INFO L226 Difference]: Without dead ends: 375 [2024-11-24 00:30:51,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:51,138 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 382 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:51,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 115 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-24 00:30:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 366. [2024-11-24 00:30:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 311 states have (on average 1.504823151125402) internal successors, (468), 348 states have internal predecessors, (468), 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) [2024-11-24 00:30:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 498 transitions. [2024-11-24 00:30:51,159 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 498 transitions. Word has length 42 [2024-11-24 00:30:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:51,159 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 498 transitions. [2024-11-24 00:30:51,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:30:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 498 transitions. [2024-11-24 00:30:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 00:30:51,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:51,160 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:51,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:30:51,161 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:51,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2051268167, now seen corresponding path program 1 times [2024-11-24 00:30:51,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:51,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108308641] [2024-11-24 00:30:51,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108308641] [2024-11-24 00:30:51,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108308641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:51,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:51,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799003819] [2024-11-24 00:30:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:51,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:51,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:51,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:51,292 INFO L87 Difference]: Start difference. First operand 366 states and 498 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:51,763 INFO L93 Difference]: Finished difference Result 400 states and 531 transitions. [2024-11-24 00:30:51,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:51,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-24 00:30:51,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:51,765 INFO L225 Difference]: With dead ends: 400 [2024-11-24 00:30:51,766 INFO L226 Difference]: Without dead ends: 399 [2024-11-24 00:30:51,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:51,767 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 39 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:51,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 198 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:51,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-24 00:30:51,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 368. [2024-11-24 00:30:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 313 states have (on average 1.5015974440894568) internal successors, (470), 350 states have internal predecessors, (470), 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) [2024-11-24 00:30:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 500 transitions. [2024-11-24 00:30:51,791 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 500 transitions. Word has length 42 [2024-11-24 00:30:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:51,791 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 500 transitions. [2024-11-24 00:30:51,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 500 transitions. [2024-11-24 00:30:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-24 00:30:51,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:51,792 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:30:51,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:30:51,793 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:51,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:51,793 INFO L85 PathProgramCache]: Analyzing trace with hash -874003057, now seen corresponding path program 1 times [2024-11-24 00:30:51,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:51,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889691443] [2024-11-24 00:30:51,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:51,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:51,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691626977] [2024-11-24 00:30:51,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:51,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:51,817 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:51,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:30:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:51,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:30:51,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:30:53,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:30:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:30:55,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:55,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889691443] [2024-11-24 00:30:55,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:30:55,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691626977] [2024-11-24 00:30:55,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691626977] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:55,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:55,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2024-11-24 00:30:55,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439995183] [2024-11-24 00:30:55,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:55,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:30:55,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:55,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:30:55,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:30:55,019 INFO L87 Difference]: Start difference. First operand 368 states and 500 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:56,818 INFO L93 Difference]: Finished difference Result 383 states and 524 transitions. [2024-11-24 00:30:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:30:56,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-11-24 00:30:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:56,822 INFO L225 Difference]: With dead ends: 383 [2024-11-24 00:30:56,822 INFO L226 Difference]: Without dead ends: 376 [2024-11-24 00:30:56,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:30:56,826 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:56,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 98 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:30:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-24 00:30:56,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 360. [2024-11-24 00:30:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 308 states have (on average 1.4837662337662338) internal successors, (457), 344 states have internal predecessors, (457), 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) [2024-11-24 00:30:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 483 transitions. [2024-11-24 00:30:56,853 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 483 transitions. Word has length 43 [2024-11-24 00:30:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:56,854 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 483 transitions. [2024-11-24 00:30:56,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:30:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 483 transitions. [2024-11-24 00:30:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-24 00:30:56,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:56,855 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:56,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:57,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:57,060 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:30:57,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:57,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1975407753, now seen corresponding path program 1 times [2024-11-24 00:30:57,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:57,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924035537] [2024-11-24 00:30:57,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:30:57,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046420570] [2024-11-24 00:30:57,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:57,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:57,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:57,086 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:57,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:30:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:57,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:30:57,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:30:57,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:01,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:01,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924035537] [2024-11-24 00:31:01,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:01,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046420570] [2024-11-24 00:31:01,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046420570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:01,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:01,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 00:31:01,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827246539] [2024-11-24 00:31:01,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:01,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:31:01,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:01,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:31:01,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:31:01,929 INFO L87 Difference]: Start difference. First operand 360 states and 483 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:03,114 INFO L93 Difference]: Finished difference Result 415 states and 557 transitions. [2024-11-24 00:31:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:31:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-11-24 00:31:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:03,117 INFO L225 Difference]: With dead ends: 415 [2024-11-24 00:31:03,117 INFO L226 Difference]: Without dead ends: 411 [2024-11-24 00:31:03,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:31:03,118 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 180 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:03,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 245 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:31:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-24 00:31:03,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 342. [2024-11-24 00:31:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 291 states have (on average 1.4329896907216495) internal successors, (417), 327 states have internal predecessors, (417), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:31:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2024-11-24 00:31:03,144 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 43 [2024-11-24 00:31:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:03,144 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2024-11-24 00:31:03,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2024-11-24 00:31:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:31:03,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:03,145 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:31:03,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:03,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:03,350 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:03,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:03,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1108098252, now seen corresponding path program 1 times [2024-11-24 00:31:03,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:03,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408191354] [2024-11-24 00:31:03,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:03,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:03,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722931062] [2024-11-24 00:31:03,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:03,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:03,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:03,385 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:03,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:31:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:03,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:31:03,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:04,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:06,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:06,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408191354] [2024-11-24 00:31:06,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:06,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722931062] [2024-11-24 00:31:06,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722931062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:06,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:06,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 00:31:06,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172106750] [2024-11-24 00:31:06,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:06,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:31:06,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:06,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:31:06,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:31:06,102 INFO L87 Difference]: Start difference. First operand 342 states and 441 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:07,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:07,365 INFO L93 Difference]: Finished difference Result 409 states and 525 transitions. [2024-11-24 00:31:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:31:07,366 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-24 00:31:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:07,369 INFO L225 Difference]: With dead ends: 409 [2024-11-24 00:31:07,369 INFO L226 Difference]: Without dead ends: 404 [2024-11-24 00:31:07,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:31:07,371 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 340 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:07,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 230 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:31:07,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-24 00:31:07,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 363. [2024-11-24 00:31:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 311 states have (on average 1.4115755627009647) internal successors, (439), 347 states have internal predecessors, (439), 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) [2024-11-24 00:31:07,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 465 transitions. [2024-11-24 00:31:07,401 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 465 transitions. Word has length 44 [2024-11-24 00:31:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:07,402 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 465 transitions. [2024-11-24 00:31:07,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 465 transitions. [2024-11-24 00:31:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-24 00:31:07,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:07,403 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:07,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:07,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:07,608 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:07,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 57920095, now seen corresponding path program 1 times [2024-11-24 00:31:07,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:07,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877578061] [2024-11-24 00:31:07,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:07,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104714888] [2024-11-24 00:31:07,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:07,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:07,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:07,637 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:07,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 00:31:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:07,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:31:07,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:31:07,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:07,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877578061] [2024-11-24 00:31:07,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104714888] [2024-11-24 00:31:07,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104714888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:07,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:07,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:07,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695039821] [2024-11-24 00:31:07,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:07,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:07,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:07,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:07,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:07,925 INFO L87 Difference]: Start difference. First operand 363 states and 465 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:08,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:08,597 INFO L93 Difference]: Finished difference Result 447 states and 586 transitions. [2024-11-24 00:31:08,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:08,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-11-24 00:31:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:08,600 INFO L225 Difference]: With dead ends: 447 [2024-11-24 00:31:08,600 INFO L226 Difference]: Without dead ends: 439 [2024-11-24 00:31:08,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:08,602 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 378 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:08,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 93 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:31:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-24 00:31:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 399. [2024-11-24 00:31:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 346 states have (on average 1.4219653179190752) internal successors, (492), 382 states have internal predecessors, (492), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 00:31:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 520 transitions. [2024-11-24 00:31:08,634 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 520 transitions. Word has length 45 [2024-11-24 00:31:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:08,635 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 520 transitions. [2024-11-24 00:31:08,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 520 transitions. [2024-11-24 00:31:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:31:08,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:08,636 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:08,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 00:31:08,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 00:31:08,837 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:08,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1795523083, now seen corresponding path program 1 times [2024-11-24 00:31:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950261057] [2024-11-24 00:31:08,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:08,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87979098] [2024-11-24 00:31:08,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:08,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:08,870 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:08,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 00:31:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:08,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:31:08,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:31:09,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:09,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950261057] [2024-11-24 00:31:09,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87979098] [2024-11-24 00:31:09,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87979098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:09,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:09,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:09,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939391406] [2024-11-24 00:31:09,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:09,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:09,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:09,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:09,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:09,147 INFO L87 Difference]: Start difference. First operand 399 states and 520 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:09,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:09,608 INFO L93 Difference]: Finished difference Result 423 states and 550 transitions. [2024-11-24 00:31:09,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:09,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-24 00:31:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:09,611 INFO L225 Difference]: With dead ends: 423 [2024-11-24 00:31:09,611 INFO L226 Difference]: Without dead ends: 422 [2024-11-24 00:31:09,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:09,612 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 226 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:09,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 90 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:09,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-24 00:31:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 399. [2024-11-24 00:31:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 346 states have (on average 1.416184971098266) internal successors, (490), 382 states have internal predecessors, (490), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 00:31:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 518 transitions. [2024-11-24 00:31:09,644 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 518 transitions. Word has length 46 [2024-11-24 00:31:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:09,644 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 518 transitions. [2024-11-24 00:31:09,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 518 transitions. [2024-11-24 00:31:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:31:09,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:09,645 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:31:09,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 00:31:09,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:09,846 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:09,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:09,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1333272026, now seen corresponding path program 1 times [2024-11-24 00:31:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630944092] [2024-11-24 00:31:09,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:09,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:09,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398041573] [2024-11-24 00:31:09,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:09,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:09,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:09,884 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:09,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 00:31:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:09,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:31:09,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:10,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:10,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630944092] [2024-11-24 00:31:10,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398041573] [2024-11-24 00:31:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398041573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:10,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764955717] [2024-11-24 00:31:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:31:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:10,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:31:10,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:31:10,154 INFO L87 Difference]: Start difference. First operand 399 states and 518 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:10,616 INFO L93 Difference]: Finished difference Result 430 states and 555 transitions. [2024-11-24 00:31:10,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:31:10,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-24 00:31:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:10,619 INFO L225 Difference]: With dead ends: 430 [2024-11-24 00:31:10,619 INFO L226 Difference]: Without dead ends: 428 [2024-11-24 00:31:10,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:31:10,620 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 153 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:10,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 269 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-24 00:31:10,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 417. [2024-11-24 00:31:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 363 states have (on average 1.4077134986225894) internal successors, (511), 399 states have internal predecessors, (511), 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) [2024-11-24 00:31:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 541 transitions. [2024-11-24 00:31:10,658 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 541 transitions. Word has length 46 [2024-11-24 00:31:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:10,658 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 541 transitions. [2024-11-24 00:31:10,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 541 transitions. [2024-11-24 00:31:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-24 00:31:10,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:10,659 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:10,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:10,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:10,860 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:10,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:10,860 INFO L85 PathProgramCache]: Analyzing trace with hash -173359135, now seen corresponding path program 1 times [2024-11-24 00:31:10,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:10,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686187178] [2024-11-24 00:31:10,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:10,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:31:10,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686187178] [2024-11-24 00:31:10,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686187178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:10,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:10,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:31:10,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972633849] [2024-11-24 00:31:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:10,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:31:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:10,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:31:10,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:31:10,986 INFO L87 Difference]: Start difference. First operand 417 states and 541 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:11,252 INFO L93 Difference]: Finished difference Result 440 states and 561 transitions. [2024-11-24 00:31:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:31:11,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-11-24 00:31:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:11,255 INFO L225 Difference]: With dead ends: 440 [2024-11-24 00:31:11,255 INFO L226 Difference]: Without dead ends: 439 [2024-11-24 00:31:11,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:31:11,256 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 30 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:11,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 203 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:31:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-24 00:31:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2024-11-24 00:31:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 374 states have (on average 1.4090909090909092) internal successors, (527), 410 states have internal predecessors, (527), 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) [2024-11-24 00:31:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 557 transitions. [2024-11-24 00:31:11,289 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 557 transitions. Word has length 47 [2024-11-24 00:31:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:11,289 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 557 transitions. [2024-11-24 00:31:11,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 557 transitions. [2024-11-24 00:31:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-24 00:31:11,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:11,290 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:31:11,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:31:11,290 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:11,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1041131226, now seen corresponding path program 1 times [2024-11-24 00:31:11,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:11,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243963942] [2024-11-24 00:31:11,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:11,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285059042] [2024-11-24 00:31:11,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:11,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:11,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:11,311 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:11,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 00:31:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:11,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:31:11,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:11,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:12,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243963942] [2024-11-24 00:31:12,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285059042] [2024-11-24 00:31:12,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285059042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:12,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:12,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 00:31:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216344948] [2024-11-24 00:31:12,401 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:12,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:31:12,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:12,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:31:12,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:31:12,404 INFO L87 Difference]: Start difference. First operand 428 states and 557 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:12,971 INFO L93 Difference]: Finished difference Result 434 states and 561 transitions. [2024-11-24 00:31:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:31:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-11-24 00:31:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:12,974 INFO L225 Difference]: With dead ends: 434 [2024-11-24 00:31:12,974 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 00:31:12,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:31:12,975 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:12,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 275 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 00:31:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 428. [2024-11-24 00:31:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 374 states have (on average 1.4037433155080214) internal successors, (525), 410 states have internal predecessors, (525), 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) [2024-11-24 00:31:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 555 transitions. [2024-11-24 00:31:13,006 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 555 transitions. Word has length 47 [2024-11-24 00:31:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:13,007 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 555 transitions. [2024-11-24 00:31:13,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 555 transitions. [2024-11-24 00:31:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-24 00:31:13,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:13,008 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:13,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:13,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:31:13,213 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:13,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1618240211, now seen corresponding path program 1 times [2024-11-24 00:31:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:13,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098811262] [2024-11-24 00:31:13,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:13,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:13,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334334571] [2024-11-24 00:31:13,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:13,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:13,234 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:13,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 00:31:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:13,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:31:13,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:13,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:14,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098811262] [2024-11-24 00:31:14,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:14,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334334571] [2024-11-24 00:31:14,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334334571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:14,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:14,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-24 00:31:14,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455709979] [2024-11-24 00:31:14,376 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:14,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:31:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:14,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:31:14,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:14,377 INFO L87 Difference]: Start difference. First operand 428 states and 555 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:15,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:15,149 INFO L93 Difference]: Finished difference Result 672 states and 872 transitions. [2024-11-24 00:31:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:31:15,150 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-24 00:31:15,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:15,151 INFO L225 Difference]: With dead ends: 672 [2024-11-24 00:31:15,151 INFO L226 Difference]: Without dead ends: 429 [2024-11-24 00:31:15,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:31:15,152 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 141 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:15,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 259 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:31:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-24 00:31:15,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 422. [2024-11-24 00:31:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 368 states have (on average 1.4021739130434783) internal successors, (516), 404 states have internal predecessors, (516), 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) [2024-11-24 00:31:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 546 transitions. [2024-11-24 00:31:15,184 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 546 transitions. Word has length 47 [2024-11-24 00:31:15,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:15,185 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 546 transitions. [2024-11-24 00:31:15,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 546 transitions. [2024-11-24 00:31:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:31:15,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:15,186 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:15,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:15,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:31:15,391 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:15,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1079165747, now seen corresponding path program 1 times [2024-11-24 00:31:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:15,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281594101] [2024-11-24 00:31:15,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:15,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:31:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281594101] [2024-11-24 00:31:15,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281594101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:15,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:15,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:31:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148768744] [2024-11-24 00:31:15,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:15,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:31:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:15,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:31:15,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:31:15,481 INFO L87 Difference]: Start difference. First operand 422 states and 546 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:16,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:16,007 INFO L93 Difference]: Finished difference Result 434 states and 548 transitions. [2024-11-24 00:31:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:31:16,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-11-24 00:31:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:16,009 INFO L225 Difference]: With dead ends: 434 [2024-11-24 00:31:16,009 INFO L226 Difference]: Without dead ends: 433 [2024-11-24 00:31:16,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:31:16,010 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:16,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 209 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-24 00:31:16,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 423. [2024-11-24 00:31:16,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 369 states have (on average 1.3983739837398375) internal successors, (516), 405 states have internal predecessors, (516), 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) [2024-11-24 00:31:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 546 transitions. [2024-11-24 00:31:16,041 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 546 transitions. Word has length 48 [2024-11-24 00:31:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:16,041 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 546 transitions. [2024-11-24 00:31:16,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:31:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 546 transitions. [2024-11-24 00:31:16,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:31:16,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:16,042 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:16,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:31:16,043 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:16,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2084670305, now seen corresponding path program 1 times [2024-11-24 00:31:16,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:16,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112640736] [2024-11-24 00:31:16,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:16,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482048562] [2024-11-24 00:31:16,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:16,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:16,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:16,067 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:16,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-24 00:31:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:16,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:31:16,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:16,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:17,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:17,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112640736] [2024-11-24 00:31:17,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:17,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482048562] [2024-11-24 00:31:17,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482048562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:17,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:17,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 00:31:17,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246897543] [2024-11-24 00:31:17,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:17,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:17,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:17,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:17,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:31:17,147 INFO L87 Difference]: Start difference. First operand 423 states and 546 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:17,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:17,815 INFO L93 Difference]: Finished difference Result 445 states and 572 transitions. [2024-11-24 00:31:17,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:31:17,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2024-11-24 00:31:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:17,818 INFO L225 Difference]: With dead ends: 445 [2024-11-24 00:31:17,818 INFO L226 Difference]: Without dead ends: 444 [2024-11-24 00:31:17,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:31:17,819 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 258 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:17,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 253 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-24 00:31:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 429. [2024-11-24 00:31:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 375 states have (on average 1.392) internal successors, (522), 411 states have internal predecessors, (522), 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) [2024-11-24 00:31:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 552 transitions. [2024-11-24 00:31:17,852 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 552 transitions. Word has length 48 [2024-11-24 00:31:17,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:17,852 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 552 transitions. [2024-11-24 00:31:17,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:31:17,853 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 552 transitions. [2024-11-24 00:31:17,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-24 00:31:17,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:17,854 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:17,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:18,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 00:31:18,058 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:18,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash 905600258, now seen corresponding path program 1 times [2024-11-24 00:31:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:18,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980896456] [2024-11-24 00:31:18,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:18,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:18,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465276853] [2024-11-24 00:31:18,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:18,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:18,084 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:18,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-24 00:31:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:18,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:31:18,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:18,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:22,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980896456] [2024-11-24 00:31:22,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465276853] [2024-11-24 00:31:22,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465276853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:22,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:22,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 00:31:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175663991] [2024-11-24 00:31:22,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:22,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:22,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:22,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:22,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-24 00:31:22,672 INFO L87 Difference]: Start difference. First operand 429 states and 552 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:23,082 INFO L93 Difference]: Finished difference Result 479 states and 629 transitions. [2024-11-24 00:31:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:31:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2024-11-24 00:31:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:23,084 INFO L225 Difference]: With dead ends: 479 [2024-11-24 00:31:23,084 INFO L226 Difference]: Without dead ends: 461 [2024-11-24 00:31:23,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2024-11-24 00:31:23,085 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 209 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:23,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 96 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:31:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-24 00:31:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 408. [2024-11-24 00:31:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 365 states have (on average 1.3287671232876712) internal successors, (485), 391 states have internal predecessors, (485), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 00:31:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 513 transitions. [2024-11-24 00:31:23,118 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 513 transitions. Word has length 49 [2024-11-24 00:31:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:23,118 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 513 transitions. [2024-11-24 00:31:23,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 513 transitions. [2024-11-24 00:31:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 00:31:23,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:23,120 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:23,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:23,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:23,324 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:23,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1991163025, now seen corresponding path program 1 times [2024-11-24 00:31:23,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:23,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874398269] [2024-11-24 00:31:23,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:23,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:23,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141723915] [2024-11-24 00:31:23,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:23,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:23,361 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:23,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-24 00:31:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:23,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:31:23,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:23,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:24,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:24,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874398269] [2024-11-24 00:31:24,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:24,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141723915] [2024-11-24 00:31:24,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141723915] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:31:24,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:31:24,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-24 00:31:24,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538379582] [2024-11-24 00:31:24,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:24,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:31:24,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:24,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:31:24,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:24,783 INFO L87 Difference]: Start difference. First operand 408 states and 513 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:31:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:36,811 INFO L93 Difference]: Finished difference Result 1010 states and 1359 transitions. [2024-11-24 00:31:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:31:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2024-11-24 00:31:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:36,814 INFO L225 Difference]: With dead ends: 1010 [2024-11-24 00:31:36,814 INFO L226 Difference]: Without dead ends: 1001 [2024-11-24 00:31:36,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=295, Invalid=826, Unknown=1, NotChecked=0, Total=1122 [2024-11-24 00:31:36,815 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 584 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:36,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 193 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-24 00:31:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-24 00:31:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 769. [2024-11-24 00:31:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 713 states have (on average 1.361851332398317) internal successors, (971), 739 states have internal predecessors, (971), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:31:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1025 transitions. [2024-11-24 00:31:36,889 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1025 transitions. Word has length 50 [2024-11-24 00:31:36,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:36,890 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1025 transitions. [2024-11-24 00:31:36,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:31:36,890 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1025 transitions. [2024-11-24 00:31:36,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 00:31:36,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:36,891 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:36,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:37,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:37,095 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:37,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:37,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1596511580, now seen corresponding path program 1 times [2024-11-24 00:31:37,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:37,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723609711] [2024-11-24 00:31:37,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:37,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914875938] [2024-11-24 00:31:37,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:37,119 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:37,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-24 00:31:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:37,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:31:37,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:37,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:37,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:37,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723609711] [2024-11-24 00:31:37,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:37,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914875938] [2024-11-24 00:31:37,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914875938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:37,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:37,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 00:31:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500362059] [2024-11-24 00:31:37,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:37,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:37,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:37,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:37,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:31:37,951 INFO L87 Difference]: Start difference. First operand 769 states and 1025 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:38,472 INFO L93 Difference]: Finished difference Result 869 states and 1168 transitions. [2024-11-24 00:31:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:31:38,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2024-11-24 00:31:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:38,476 INFO L225 Difference]: With dead ends: 869 [2024-11-24 00:31:38,477 INFO L226 Difference]: Without dead ends: 864 [2024-11-24 00:31:38,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:38,478 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 99 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:38,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 83 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-24 00:31:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 739. [2024-11-24 00:31:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 689 states have (on average 1.3265602322206096) internal successors, (914), 710 states have internal predecessors, (914), 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) [2024-11-24 00:31:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 966 transitions. [2024-11-24 00:31:38,549 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 966 transitions. Word has length 51 [2024-11-24 00:31:38,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:38,549 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 966 transitions. [2024-11-24 00:31:38,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 966 transitions. [2024-11-24 00:31:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 00:31:38,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:38,551 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:38,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-24 00:31:38,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:38,753 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:38,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:38,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2047748625, now seen corresponding path program 1 times [2024-11-24 00:31:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:38,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950107670] [2024-11-24 00:31:38,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:38,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674629622] [2024-11-24 00:31:38,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:38,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:38,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:38,791 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:38,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-24 00:31:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:38,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:31:38,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:39,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:40,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950107670] [2024-11-24 00:31:40,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674629622] [2024-11-24 00:31:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674629622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:31:40,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:31:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-24 00:31:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633294941] [2024-11-24 00:31:40,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:40,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:31:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:40,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:31:40,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:40,428 INFO L87 Difference]: Start difference. First operand 739 states and 966 transitions. Second operand has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:31:47,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:47,743 INFO L93 Difference]: Finished difference Result 859 states and 1117 transitions. [2024-11-24 00:31:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:31:47,744 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2024-11-24 00:31:47,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:47,746 INFO L225 Difference]: With dead ends: 859 [2024-11-24 00:31:47,746 INFO L226 Difference]: Without dead ends: 858 [2024-11-24 00:31:47,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:31:47,747 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 371 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:47,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 172 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-24 00:31:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-24 00:31:47,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 774. [2024-11-24 00:31:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 723 states have (on average 1.3125864453665284) internal successors, (949), 744 states have internal predecessors, (949), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:31:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1003 transitions. [2024-11-24 00:31:47,829 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1003 transitions. Word has length 52 [2024-11-24 00:31:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:47,829 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1003 transitions. [2024-11-24 00:31:47,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:31:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1003 transitions. [2024-11-24 00:31:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 00:31:47,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:47,830 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:31:47,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:48,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-24 00:31:48,031 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:48,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:48,032 INFO L85 PathProgramCache]: Analyzing trace with hash -944302010, now seen corresponding path program 1 times [2024-11-24 00:31:48,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:48,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684821651] [2024-11-24 00:31:48,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:48,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257255842] [2024-11-24 00:31:48,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:48,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:48,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:48,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-24 00:31:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:48,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:31:48,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:48,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:49,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:49,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684821651] [2024-11-24 00:31:49,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:49,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257255842] [2024-11-24 00:31:49,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257255842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:49,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:49,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-24 00:31:49,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968406845] [2024-11-24 00:31:49,465 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:49,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:31:49,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:49,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:31:49,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:49,466 INFO L87 Difference]: Start difference. First operand 774 states and 1003 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:50,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:50,415 INFO L93 Difference]: Finished difference Result 842 states and 1084 transitions. [2024-11-24 00:31:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:31:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-24 00:31:50,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:50,419 INFO L225 Difference]: With dead ends: 842 [2024-11-24 00:31:50,419 INFO L226 Difference]: Without dead ends: 838 [2024-11-24 00:31:50,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:31:50,420 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 311 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:50,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 122 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:31:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-24 00:31:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 774. [2024-11-24 00:31:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 723 states have (on average 1.2890733056708161) internal successors, (932), 744 states have internal predecessors, (932), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:31:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 986 transitions. [2024-11-24 00:31:50,482 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 986 transitions. Word has length 53 [2024-11-24 00:31:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:50,483 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 986 transitions. [2024-11-24 00:31:50,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 986 transitions. [2024-11-24 00:31:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 00:31:50,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:50,484 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:50,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-24 00:31:50,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-24 00:31:50,685 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:50,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash 791408819, now seen corresponding path program 1 times [2024-11-24 00:31:50,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:50,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825938521] [2024-11-24 00:31:50,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:50,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:50,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872880924] [2024-11-24 00:31:50,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:50,710 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:50,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-24 00:31:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:50,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:31:50,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:31:51,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:52,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:52,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825938521] [2024-11-24 00:31:52,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:52,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872880924] [2024-11-24 00:31:52,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872880924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:52,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:52,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 00:31:52,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453538741] [2024-11-24 00:31:52,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:52,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:31:52,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:52,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:31:52,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:31:52,127 INFO L87 Difference]: Start difference. First operand 774 states and 986 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:53,645 INFO L93 Difference]: Finished difference Result 796 states and 1012 transitions. [2024-11-24 00:31:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:31:53,645 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2024-11-24 00:31:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:53,647 INFO L225 Difference]: With dead ends: 796 [2024-11-24 00:31:53,647 INFO L226 Difference]: Without dead ends: 795 [2024-11-24 00:31:53,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:31:53,648 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 265 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:53,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 187 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:31:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-11-24 00:31:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 780. [2024-11-24 00:31:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 729 states have (on average 1.2866941015089164) internal successors, (938), 750 states have internal predecessors, (938), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:31:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 992 transitions. [2024-11-24 00:31:53,698 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 992 transitions. Word has length 54 [2024-11-24 00:31:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:53,698 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 992 transitions. [2024-11-24 00:31:53,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:31:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 992 transitions. [2024-11-24 00:31:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:31:53,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:53,700 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:53,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:53,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-24 00:31:53,900 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:53,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -674341970, now seen corresponding path program 1 times [2024-11-24 00:31:53,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:53,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038725470] [2024-11-24 00:31:53,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:53,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11894380] [2024-11-24 00:31:53,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:53,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:53,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:53,925 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:53,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-24 00:31:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:53,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:31:54,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:31:54,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:56,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:56,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038725470] [2024-11-24 00:31:56,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:56,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11894380] [2024-11-24 00:31:56,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11894380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:56,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:56,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 00:31:56,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303006388] [2024-11-24 00:31:56,454 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:56,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:31:56,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:56,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:31:56,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:31:56,455 INFO L87 Difference]: Start difference. First operand 780 states and 992 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:31:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:58,970 INFO L93 Difference]: Finished difference Result 834 states and 1056 transitions. [2024-11-24 00:31:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:31:58,970 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 60 [2024-11-24 00:31:58,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:58,974 INFO L225 Difference]: With dead ends: 834 [2024-11-24 00:31:58,974 INFO L226 Difference]: Without dead ends: 830 [2024-11-24 00:31:58,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:31:58,975 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 175 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:58,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 251 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:31:58,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-24 00:31:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 790. [2024-11-24 00:31:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 739 states have (on average 1.2855209742895806) internal successors, (950), 760 states have internal predecessors, (950), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:31:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1004 transitions. [2024-11-24 00:31:59,023 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1004 transitions. Word has length 60 [2024-11-24 00:31:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:59,024 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1004 transitions. [2024-11-24 00:31:59,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:31:59,024 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1004 transitions. [2024-11-24 00:31:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:31:59,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:59,025 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:31:59,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:59,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-24 00:31:59,229 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:31:59,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash 985358196, now seen corresponding path program 1 times [2024-11-24 00:31:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:59,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161188572] [2024-11-24 00:31:59,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:59,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147221518] [2024-11-24 00:31:59,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:59,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:59,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:59,257 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:59,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-24 00:31:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:59,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:31:59,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:32:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:32:00,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:32:02,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161188572] [2024-11-24 00:32:02,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:32:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147221518] [2024-11-24 00:32:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147221518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:32:02,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:32:02,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 00:32:02,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600750379] [2024-11-24 00:32:02,186 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:32:02,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:32:02,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:02,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:32:02,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:32:02,187 INFO L87 Difference]: Start difference. First operand 790 states and 1004 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:04,038 INFO L93 Difference]: Finished difference Result 1010 states and 1302 transitions. [2024-11-24 00:32:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:32:04,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-11-24 00:32:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:04,042 INFO L225 Difference]: With dead ends: 1010 [2024-11-24 00:32:04,042 INFO L226 Difference]: Without dead ends: 1004 [2024-11-24 00:32:04,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:32:04,043 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 275 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:04,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 168 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:32:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-24 00:32:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 897. [2024-11-24 00:32:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 840 states have (on average 1.2988095238095239) internal successors, (1091), 861 states have internal predecessors, (1091), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 00:32:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1157 transitions. [2024-11-24 00:32:04,101 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1157 transitions. Word has length 61 [2024-11-24 00:32:04,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:04,101 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1157 transitions. [2024-11-24 00:32:04,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1157 transitions. [2024-11-24 00:32:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:32:04,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:04,103 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:32:04,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-24 00:32:04,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-24 00:32:04,304 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:04,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash 586334021, now seen corresponding path program 1 times [2024-11-24 00:32:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:04,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205376125] [2024-11-24 00:32:04,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:04,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:04,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205376125] [2024-11-24 00:32:04,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205376125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:32:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181122295] [2024-11-24 00:32:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:04,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:32:04,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:32:04,419 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:32:04,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-24 00:32:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:04,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:32:04,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:32:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:04,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:32:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181122295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:32:04,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:32:04,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-24 00:32:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435599204] [2024-11-24 00:32:04,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:32:04,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:32:04,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:04,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:32:04,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:32:04,678 INFO L87 Difference]: Start difference. First operand 897 states and 1157 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-24 00:32:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:05,124 INFO L93 Difference]: Finished difference Result 1708 states and 2277 transitions. [2024-11-24 00:32:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:32:05,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 61 [2024-11-24 00:32:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:05,129 INFO L225 Difference]: With dead ends: 1708 [2024-11-24 00:32:05,129 INFO L226 Difference]: Without dead ends: 1707 [2024-11-24 00:32:05,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:32:05,130 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 143 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:05,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 296 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:32:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-24 00:32:05,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1680. [2024-11-24 00:32:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1600 states have (on average 1.340625) internal successors, (2145), 1621 states have internal predecessors, (2145), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-24 00:32:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2257 transitions. [2024-11-24 00:32:05,247 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2257 transitions. Word has length 61 [2024-11-24 00:32:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:05,248 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2257 transitions. [2024-11-24 00:32:05,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-24 00:32:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2257 transitions. [2024-11-24 00:32:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:32:05,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:05,249 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:32:05,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-24 00:32:05,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-24 00:32:05,450 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:05,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:05,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1990742916, now seen corresponding path program 1 times [2024-11-24 00:32:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:05,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3589232] [2024-11-24 00:32:05,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:05,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:06,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:06,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3589232] [2024-11-24 00:32:06,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3589232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:06,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:06,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:32:06,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459765188] [2024-11-24 00:32:06,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:06,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:32:06,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:06,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:32:06,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:32:06,004 INFO L87 Difference]: Start difference. First operand 1680 states and 2257 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:06,981 INFO L93 Difference]: Finished difference Result 2419 states and 3343 transitions. [2024-11-24 00:32:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:32:06,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 63 [2024-11-24 00:32:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:06,991 INFO L225 Difference]: With dead ends: 2419 [2024-11-24 00:32:06,991 INFO L226 Difference]: Without dead ends: 2417 [2024-11-24 00:32:06,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:32:06,993 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 300 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:06,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 139 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:32:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2024-11-24 00:32:07,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2301. [2024-11-24 00:32:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2200 states have (on average 1.3595454545454546) internal successors, (2991), 2221 states have internal predecessors, (2991), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-24 00:32:07,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3145 transitions. [2024-11-24 00:32:07,193 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3145 transitions. Word has length 63 [2024-11-24 00:32:07,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:07,194 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3145 transitions. [2024-11-24 00:32:07,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:07,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3145 transitions. [2024-11-24 00:32:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:32:07,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:07,195 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:32:07,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:32:07,195 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:07,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:07,196 INFO L85 PathProgramCache]: Analyzing trace with hash 479749697, now seen corresponding path program 1 times [2024-11-24 00:32:07,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:07,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372694767] [2024-11-24 00:32:07,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:07,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:07,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:07,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372694767] [2024-11-24 00:32:07,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372694767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:07,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:07,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:07,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660499874] [2024-11-24 00:32:07,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:07,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:07,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:07,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:07,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:07,307 INFO L87 Difference]: Start difference. First operand 2301 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:07,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:07,704 INFO L93 Difference]: Finished difference Result 4038 states and 5610 transitions. [2024-11-24 00:32:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:32:07,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-24 00:32:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:07,714 INFO L225 Difference]: With dead ends: 4038 [2024-11-24 00:32:07,714 INFO L226 Difference]: Without dead ends: 2403 [2024-11-24 00:32:07,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:07,718 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:07,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:32:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2024-11-24 00:32:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2362. [2024-11-24 00:32:07,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2247 states have (on average 1.3502447708055185) internal successors, (3034), 2268 states have internal predecessors, (3034), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-24 00:32:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3216 transitions. [2024-11-24 00:32:07,982 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3216 transitions. Word has length 64 [2024-11-24 00:32:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:07,983 INFO L471 AbstractCegarLoop]: Abstraction has 2362 states and 3216 transitions. [2024-11-24 00:32:07,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3216 transitions. [2024-11-24 00:32:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:32:07,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:07,985 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:32:07,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:32:07,985 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:07,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1786457393, now seen corresponding path program 1 times [2024-11-24 00:32:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:07,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070095706] [2024-11-24 00:32:07,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:07,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:08,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:08,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070095706] [2024-11-24 00:32:08,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070095706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:08,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:08,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:08,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746873229] [2024-11-24 00:32:08,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:08,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:08,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:08,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:08,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:08,191 INFO L87 Difference]: Start difference. First operand 2362 states and 3216 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:08,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:08,579 INFO L93 Difference]: Finished difference Result 4037 states and 5583 transitions. [2024-11-24 00:32:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:32:08,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-24 00:32:08,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:08,590 INFO L225 Difference]: With dead ends: 4037 [2024-11-24 00:32:08,590 INFO L226 Difference]: Without dead ends: 2403 [2024-11-24 00:32:08,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:08,594 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 10 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:08,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 114 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:32:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2024-11-24 00:32:08,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2317. [2024-11-24 00:32:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2197 states have (on average 1.352753755120619) internal successors, (2972), 2218 states have internal predecessors, (2972), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:32:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 3164 transitions. [2024-11-24 00:32:08,870 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 3164 transitions. Word has length 64 [2024-11-24 00:32:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:08,870 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 3164 transitions. [2024-11-24 00:32:08,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 3164 transitions. [2024-11-24 00:32:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:32:08,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:08,872 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:32:08,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:32:08,872 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:08,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:08,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1488284901, now seen corresponding path program 1 times [2024-11-24 00:32:08,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:08,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495652301] [2024-11-24 00:32:08,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:08,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:32:09,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:09,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495652301] [2024-11-24 00:32:09,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495652301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:09,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:09,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:32:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031227661] [2024-11-24 00:32:09,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:09,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:32:09,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:09,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:32:09,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:09,144 INFO L87 Difference]: Start difference. First operand 2317 states and 3164 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:09,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:09,661 INFO L93 Difference]: Finished difference Result 4365 states and 6017 transitions. [2024-11-24 00:32:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:32:09,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-11-24 00:32:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:09,678 INFO L225 Difference]: With dead ends: 4365 [2024-11-24 00:32:09,678 INFO L226 Difference]: Without dead ends: 2395 [2024-11-24 00:32:09,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:09,683 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 19 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:09,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 147 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:32:09,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2024-11-24 00:32:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2278. [2024-11-24 00:32:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2278 states, 2160 states have (on average 1.3444444444444446) internal successors, (2904), 2181 states have internal predecessors, (2904), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 00:32:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3092 transitions. [2024-11-24 00:32:09,922 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3092 transitions. Word has length 65 [2024-11-24 00:32:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:09,922 INFO L471 AbstractCegarLoop]: Abstraction has 2278 states and 3092 transitions. [2024-11-24 00:32:09,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:32:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3092 transitions. [2024-11-24 00:32:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:32:09,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:09,924 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-24 00:32:09,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:32:09,924 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:09,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:09,925 INFO L85 PathProgramCache]: Analyzing trace with hash -513953655, now seen corresponding path program 2 times [2024-11-24 00:32:09,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:09,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966829877] [2024-11-24 00:32:09,925 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:32:09,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:09,961 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:32:09,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:32:09,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210523598] [2024-11-24 00:32:09,967 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:32:09,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:32:09,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:32:09,969 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:32:09,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-24 00:32:10,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:32:10,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:32:10,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 00:32:10,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:32:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:32:12,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:32:15,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:15,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966829877] [2024-11-24 00:32:15,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:32:15,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210523598] [2024-11-24 00:32:15,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210523598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:32:15,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:32:15,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-24 00:32:15,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979173307] [2024-11-24 00:32:15,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:32:15,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:32:15,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:15,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:32:15,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:32:15,035 INFO L87 Difference]: Start difference. First operand 2278 states and 3092 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:17,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:17,865 INFO L93 Difference]: Finished difference Result 2310 states and 3131 transitions. [2024-11-24 00:32:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:32:17,866 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 65 [2024-11-24 00:32:17,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:17,875 INFO L225 Difference]: With dead ends: 2310 [2024-11-24 00:32:17,875 INFO L226 Difference]: Without dead ends: 2305 [2024-11-24 00:32:17,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:32:17,877 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 142 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:17,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 339 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:32:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-11-24 00:32:18,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2301. [2024-11-24 00:32:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2182 states have (on average 1.3428047662694775) internal successors, (2930), 2203 states have internal predecessors, (2930), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-24 00:32:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3120 transitions. [2024-11-24 00:32:18,070 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3120 transitions. Word has length 65 [2024-11-24 00:32:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:18,073 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3120 transitions. [2024-11-24 00:32:18,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:32:18,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3120 transitions. [2024-11-24 00:32:18,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-24 00:32:18,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:18,075 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 00:32:18,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-24 00:32:18,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-24 00:32:18,279 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:32:18,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1142314988, now seen corresponding path program 1 times [2024-11-24 00:32:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:18,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445625655] [2024-11-24 00:32:18,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:32:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033695177] [2024-11-24 00:32:18,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:18,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:32:18,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:32:18,311 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:32:18,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-24 00:32:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:18,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:32:18,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:32:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:32:29,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:32:30,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:30,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445625655] [2024-11-24 00:32:30,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:32:30,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033695177] [2024-11-24 00:32:30,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033695177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:32:30,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:32:30,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-24 00:32:30,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024662267] [2024-11-24 00:32:30,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:32:30,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:32:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:30,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:32:30,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=382, Unknown=1, NotChecked=0, Total=462 [2024-11-24 00:32:30,286 INFO L87 Difference]: Start difference. First operand 2301 states and 3120 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:32:33,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:32:38,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:32:42,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:32:46,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:32:51,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:32:56,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:00,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:04,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:08,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:12,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:18,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:33:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:19,735 INFO L93 Difference]: Finished difference Result 2338 states and 3166 transitions. [2024-11-24 00:33:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:33:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 66 [2024-11-24 00:33:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:19,744 INFO L225 Difference]: With dead ends: 2338 [2024-11-24 00:33:19,744 INFO L226 Difference]: Without dead ends: 2337 [2024-11-24 00:33:19,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=113, Invalid=536, Unknown=1, NotChecked=0, Total=650 [2024-11-24 00:33:19,746 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 168 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 5 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:19,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 249 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1157 Invalid, 10 Unknown, 0 Unchecked, 47.8s Time] [2024-11-24 00:33:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2024-11-24 00:33:19,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2315. [2024-11-24 00:33:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2196 states have (on average 1.3415300546448088) internal successors, (2946), 2217 states have internal predecessors, (2946), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-24 00:33:19,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3136 transitions. [2024-11-24 00:33:19,961 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3136 transitions. Word has length 66 [2024-11-24 00:33:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:19,962 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3136 transitions. [2024-11-24 00:33:19,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:33:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3136 transitions. [2024-11-24 00:33:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:33:19,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:19,963 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-24 00:33:19,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-24 00:33:20,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:20,167 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:33:20,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:20,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1939013235, now seen corresponding path program 1 times [2024-11-24 00:33:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832732245] [2024-11-24 00:33:20,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:20,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:33:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966663820] [2024-11-24 00:33:20,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:20,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:20,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:20,196 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:20,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-24 00:33:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:20,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:33:20,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:33:20,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:33:20,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832732245] [2024-11-24 00:33:20,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:33:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966663820] [2024-11-24 00:33:20,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966663820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:20,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:33:20,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 00:33:20,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812013032] [2024-11-24 00:33:20,839 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:33:20,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:33:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:20,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:33:20,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:33:20,839 INFO L87 Difference]: Start difference. First operand 2315 states and 3136 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:33:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:21,966 INFO L93 Difference]: Finished difference Result 2487 states and 3367 transitions. [2024-11-24 00:33:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:33:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 67 [2024-11-24 00:33:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:21,974 INFO L225 Difference]: With dead ends: 2487 [2024-11-24 00:33:21,974 INFO L226 Difference]: Without dead ends: 2486 [2024-11-24 00:33:21,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:33:21,976 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 183 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:21,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 282 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:33:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2024-11-24 00:33:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2372. [2024-11-24 00:33:22,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2372 states, 2250 states have (on average 1.3386666666666667) internal successors, (3012), 2271 states have internal predecessors, (3012), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:33:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2372 states to 2372 states and 3208 transitions. [2024-11-24 00:33:22,187 INFO L78 Accepts]: Start accepts. Automaton has 2372 states and 3208 transitions. Word has length 67 [2024-11-24 00:33:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:22,188 INFO L471 AbstractCegarLoop]: Abstraction has 2372 states and 3208 transitions. [2024-11-24 00:33:22,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:33:22,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2372 states and 3208 transitions. [2024-11-24 00:33:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:33:22,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:22,190 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:22,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-24 00:33:22,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:22,394 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:33:22,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2076768904, now seen corresponding path program 1 times [2024-11-24 00:33:22,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:22,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087366208] [2024-11-24 00:33:22,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:22,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:33:22,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376306660] [2024-11-24 00:33:22,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:22,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:22,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:22,427 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:22,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-24 00:33:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:22,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 00:33:22,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:33:24,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:33:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:33:34,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087366208] [2024-11-24 00:33:34,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:33:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376306660] [2024-11-24 00:33:34,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376306660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:33:34,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:33:34,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-24 00:33:34,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933659596] [2024-11-24 00:33:34,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:33:34,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:33:34,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:34,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:33:34,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=485, Unknown=1, NotChecked=0, Total=600 [2024-11-24 00:33:34,995 INFO L87 Difference]: Start difference. First operand 2372 states and 3208 transitions. Second operand has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:34:08,933 WARN L286 SmtUtils]: Spent 33.14s on a formula simplification. DAG size of input: 61 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:34:10,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:34:11,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:34:16,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:34:20,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:34:24,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:34:37,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:35:00,504 WARN L286 SmtUtils]: Spent 18.38s on a formula simplification. DAG size of input: 53 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:35:16,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:35:17,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:35:25,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:35:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:26,450 INFO L93 Difference]: Finished difference Result 3439 states and 4703 transitions. [2024-11-24 00:35:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-24 00:35:26,451 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 67 [2024-11-24 00:35:26,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:26,460 INFO L225 Difference]: With dead ends: 3439 [2024-11-24 00:35:26,460 INFO L226 Difference]: Without dead ends: 3430 [2024-11-24 00:35:26,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 86.5s TimeCoverageRelationStatistics Valid=685, Invalid=1859, Unknown=6, NotChecked=0, Total=2550 [2024-11-24 00:35:26,463 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 603 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 98 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:26,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 242 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2057 Invalid, 3 Unknown, 0 Unchecked, 33.5s Time] [2024-11-24 00:35:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2024-11-24 00:35:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 2601. [2024-11-24 00:35:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2470 states have (on average 1.3352226720647773) internal successors, (3298), 2491 states have internal predecessors, (3298), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 00:35:26,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3512 transitions. [2024-11-24 00:35:26,721 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3512 transitions. Word has length 67 [2024-11-24 00:35:26,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:26,722 INFO L471 AbstractCegarLoop]: Abstraction has 2601 states and 3512 transitions. [2024-11-24 00:35:26,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:35:26,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3512 transitions. [2024-11-24 00:35:26,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:35:26,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:26,723 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-24 00:35:26,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-24 00:35:26,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:26,927 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:35:26,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1052026205, now seen corresponding path program 2 times [2024-11-24 00:35:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:26,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317239913] [2024-11-24 00:35:26,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:35:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:26,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:35:26,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:35:26,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192592048] [2024-11-24 00:35:26,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:35:26,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:26,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:26,950 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:35:26,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-24 00:35:27,009 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:35:27,010 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:35:27,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:35:27,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:35:28,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:35:30,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:35:30,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317239913] [2024-11-24 00:35:30,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:35:30,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192592048] [2024-11-24 00:35:30,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192592048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:35:30,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:35:30,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:35:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900936692] [2024-11-24 00:35:30,283 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:35:30,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:35:30,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:35:30,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:35:30,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:35:30,283 INFO L87 Difference]: Start difference. First operand 2601 states and 3512 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:35:32,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:32,853 INFO L93 Difference]: Finished difference Result 3252 states and 4403 transitions. [2024-11-24 00:35:32,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:35:32,854 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 67 [2024-11-24 00:35:32,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:32,861 INFO L225 Difference]: With dead ends: 3252 [2024-11-24 00:35:32,861 INFO L226 Difference]: Without dead ends: 2598 [2024-11-24 00:35:32,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=266, Invalid=856, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:35:32,863 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 162 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:32,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 276 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:35:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2024-11-24 00:35:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2594. [2024-11-24 00:35:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2463 states have (on average 1.3345513601299228) internal successors, (3287), 2484 states have internal predecessors, (3287), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 00:35:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 3501 transitions. [2024-11-24 00:35:33,051 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 3501 transitions. Word has length 67 [2024-11-24 00:35:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:33,052 INFO L471 AbstractCegarLoop]: Abstraction has 2594 states and 3501 transitions. [2024-11-24 00:35:33,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:35:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 3501 transitions. [2024-11-24 00:35:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:35:33,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:33,053 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-24 00:35:33,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-24 00:35:33,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:33,253 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:35:33,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1074672191, now seen corresponding path program 1 times [2024-11-24 00:35:33,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:33,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656669607] [2024-11-24 00:35:33,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:35:33,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520362903] [2024-11-24 00:35:33,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:33,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:33,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:33,274 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:35:33,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-24 00:35:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:33,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:35:33,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:35:33,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:35:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:35:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:35:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656669607] [2024-11-24 00:35:34,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:35:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520362903] [2024-11-24 00:35:34,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520362903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:35:34,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:35:34,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-24 00:35:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319898228] [2024-11-24 00:35:34,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:35:34,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:35:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:35:34,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:35:34,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:35:34,097 INFO L87 Difference]: Start difference. First operand 2594 states and 3501 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-24 00:35:35,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:35,481 INFO L93 Difference]: Finished difference Result 2863 states and 3856 transitions. [2024-11-24 00:35:35,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:35:35,482 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 68 [2024-11-24 00:35:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:35,489 INFO L225 Difference]: With dead ends: 2863 [2024-11-24 00:35:35,489 INFO L226 Difference]: Without dead ends: 2861 [2024-11-24 00:35:35,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:35:35,491 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 270 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:35,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 217 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:35:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2024-11-24 00:35:35,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2674. [2024-11-24 00:35:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2539 states have (on average 1.3276880661677826) internal successors, (3371), 2560 states have internal predecessors, (3371), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-24 00:35:35,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3593 transitions. [2024-11-24 00:35:35,750 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3593 transitions. Word has length 68 [2024-11-24 00:35:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:35,750 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 3593 transitions. [2024-11-24 00:35:35,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-24 00:35:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3593 transitions. [2024-11-24 00:35:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:35:35,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:35,752 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-24 00:35:35,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-24 00:35:35,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:35,952 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:35:35,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash -20131802, now seen corresponding path program 1 times [2024-11-24 00:35:35,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:35,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927653037] [2024-11-24 00:35:35,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:35,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:35:35,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190820863] [2024-11-24 00:35:35,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:35,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:35,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:35,971 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:35:35,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8603d67b-5c1f-4e4d-96ef-1a950daa54f0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-24 00:35:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:36,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 00:35:36,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:35:37,870 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:36:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:36:42,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:42,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927653037] [2024-11-24 00:36:42,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:36:42,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190820863] [2024-11-24 00:36:42,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190820863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:36:42,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:36:42,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-24 00:36:42,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739639893] [2024-11-24 00:36:42,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:36:42,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 00:36:42,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:42,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 00:36:42,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=535, Unknown=1, NotChecked=0, Total=702 [2024-11-24 00:36:42,473 INFO L87 Difference]: Start difference. First operand 2674 states and 3593 transitions. Second operand has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-24 00:36:47,216 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse36 (mod |c_ULTIMATE.start_main_~b~0#1| 2))) (let ((.cse2 (= .cse36 0)) (.cse31 (div |c_ULTIMATE.start_main_~b~0#1| 2)) (.cse38 (div |c_ULTIMATE.start_main_~a~0#1| 2)) (.cse33 (mod |c_ULTIMATE.start_main_~a~0#1| 2))) (let ((.cse17 (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~b~0#1|)) (.cse12 (= .cse33 0)) (.cse35 (* .cse38 |c_ULTIMATE.start_main_~p~0#1|)) (.cse34 (* .cse38 |c_ULTIMATE.start_main_~p~0#1| .cse31)) (.cse27 (* |c_ULTIMATE.start_main_~p~0#1| .cse31)) (.cse21 (not .cse2)) (.cse37 (+ |c_ULTIMATE.start_main_~b~0#1| 1)) (.cse1 (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~p~0#1| .cse31))) (let ((.cse3 (* .cse1 4)) (.cse4 (< 0 .cse37)) (.cse7 (and .cse21 (<= .cse37 0))) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1| 1)) (.cse18 (and (<= 1 .cse36) (<= 0 |c_ULTIMATE.start_main_~b~0#1|))) (.cse24 (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~b~0#1|)) (.cse13 (< 2305843009213693951 (+ .cse35 .cse34 |c_ULTIMATE.start_main_~p~0#1| .cse27))) (.cse14 (* |c_ULTIMATE.start_main_~p~0#1| 4)) (.cse16 (< 2305843009213693951 (+ .cse34 .cse27))) (.cse15 (* 4 .cse27)) (.cse5 (not .cse12)) (.cse10 (< 2305843009213693951 (+ .cse35 .cse34))) (.cse11 (* .cse35 4)) (.cse9 (< 2305843009213693951 .cse34)) (.cse22 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|)) (.cse8 (* .cse34 4)) (.cse25 (+ 9223372036854775808 .cse17)) (.cse32 (+ .cse17 |c_ULTIMATE.start_main_~q~0#1|))) (and (let ((.cse0 (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~p~0#1|))) (or (< 2305843009213693951 (+ .cse0 .cse1)) .cse2 (< (+ (* .cse0 4) .cse3 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808) .cse4)) (or (and .cse5 (<= .cse6 0)) (and (or .cse7 (< (+ .cse8 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808) .cse9) (or .cse2 .cse10 .cse4 (< (+ .cse11 .cse8 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808)))) (or (< 2305843009213693951 .cse1) .cse7 (< (+ .cse3 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808)) (or .cse12 (< 0 .cse6) (and (or .cse13 .cse2 (< (+ .cse11 .cse14 .cse15 .cse8 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808) .cse4) (or .cse7 (< (+ .cse15 .cse8 |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808) .cse16))) (or (< (+ (* .cse17 4) |c_ULTIMATE.start_main_~q~0#1|) 9223372036854775808) (< 2305843009213693951 .cse17)) (let ((.cse19 (mod .cse6 2))) (or .cse18 (and (<= 1 .cse19) (<= 1 |c_ULTIMATE.start_main_~a~0#1|)) (let ((.cse30 (div (+ (- 1) |c_ULTIMATE.start_main_~a~0#1|) 2))) (let ((.cse28 (* .cse30 |c_ULTIMATE.start_main_~p~0#1|)) (.cse26 (* .cse30 |c_ULTIMATE.start_main_~p~0#1| .cse31))) (let ((.cse20 (= .cse19 0)) (.cse23 (* .cse26 4)) (.cse29 (* .cse28 4))) (and (or .cse20 (and (or .cse21 (< (+ .cse22 .cse23 .cse15 .cse24) .cse25) (< 2305843009213693951 (+ .cse26 .cse27))) (or .cse2 (< 2305843009213693951 (+ .cse26 |c_ULTIMATE.start_main_~p~0#1| .cse28 .cse27)) (< (+ .cse22 .cse23 .cse29 .cse14 .cse15 .cse24) .cse25)))) (or (not .cse20) (and (or .cse21 (< (+ .cse22 .cse23 .cse24) .cse25) (< 2305843009213693951 .cse26)) (or (< 2305843009213693951 (+ .cse26 .cse28)) .cse2 (< (+ .cse22 .cse23 .cse29 .cse24) .cse25)))))))) (not (= .cse22 .cse32)))) (or (and (<= 1 .cse33) (<= 0 |c_ULTIMATE.start_main_~a~0#1|)) .cse18 (not (= .cse22 (+ .cse17 .cse24 |c_ULTIMATE.start_main_~q~0#1|))) (and (or (and (or .cse13 .cse2 (< (+ .cse22 .cse11 .cse14 .cse15 .cse8) .cse25)) (or .cse21 .cse16 (< (+ .cse22 .cse15 .cse8) .cse25))) .cse12) (or .cse5 (and (or .cse2 .cse10 (< (+ .cse22 .cse11 .cse8) .cse25)) (or .cse21 .cse9 (< (+ .cse22 .cse8) .cse25)))))) (<= .cse32 9223372036854775807)))))) is different from false [2024-11-24 00:39:00,424 WARN L286 SmtUtils]: Spent 2.18m on a formula simplification that was a NOOP. DAG size: 153 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:39:05,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:10,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:13,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:15,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:21,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:26,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:39:44,922 WARN L286 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 69 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:40:09,104 WARN L286 SmtUtils]: Spent 15.22s on a formula simplification. DAG size of input: 115 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:41:22,083 WARN L286 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 128 DAG size of output: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:41:23,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:28,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:33,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:35,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:38,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:42,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:41:53,676 WARN L286 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:42:09,144 WARN L286 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 88 DAG size of output: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:42:13,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:42:17,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:42:39,653 WARN L286 SmtUtils]: Spent 13.04s on a formula simplification. DAG size of input: 91 DAG size of output: 78 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:44:40,815 WARN L286 SmtUtils]: Spent 1.81m on a formula simplification. DAG size of input: 133 DAG size of output: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)