./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU --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 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:24,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:24,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:00:24,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:24,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:24,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:24,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:24,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:24,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:24,398 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:24,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:24,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:24,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:24,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:24,400 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:24,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:24,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:24,414 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:24,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:24,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:24,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:24,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:24,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:24,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:24,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:24,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:00:24,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:24,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:24,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:24,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:24,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:24,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:24,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:24,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:24,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:24,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:24,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:24,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:24,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:24,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:24,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:24,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:24,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:24,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:24,429 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 [2024-10-31 22:00:24,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:24,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:24,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:24,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:24,749 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:24,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c Unable to find full path for "g++" [2024-10-31 22:00:26,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:27,140 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:27,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2024-10-31 22:00:27,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/data/581f5036e/7a816f47d57f4a5db2be721bc45ba3ce/FLAG9c7046139 [2024-10-31 22:00:27,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/data/581f5036e/7a816f47d57f4a5db2be721bc45ba3ce [2024-10-31 22:00:27,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:27,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:27,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:27,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:27,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:27,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ada56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27, skipping insertion in model container [2024-10-31 22:00:27,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:27,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:27,424 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:27,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:27,465 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:27,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27 WrapperNode [2024-10-31 22:00:27,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:27,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:27,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:27,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:27,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,511 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2024-10-31 22:00:27,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:27,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:27,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:27,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:27,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,542 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]. [2024-10-31 22:00:27,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:27,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:27,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:27,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:27,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (1/1) ... [2024-10-31 22:00:27,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:27,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:27,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:00:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:00:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:00:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:00:27,716 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:27,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:28,405 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:28,405 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:28,437 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:28,439 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:00:28,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:28 BoogieIcfgContainer [2024-10-31 22:00:28,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:28,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:28,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:28,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:28,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:27" (1/3) ... [2024-10-31 22:00:28,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e3214f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:28, skipping insertion in model container [2024-10-31 22:00:28,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:27" (2/3) ... [2024-10-31 22:00:28,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e3214f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:28, skipping insertion in model container [2024-10-31 22:00:28,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:28" (3/3) ... [2024-10-31 22:00:28,454 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound20.c [2024-10-31 22:00:28,477 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:28,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2024-10-31 22:00:28,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:28,620 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;@44a79515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:28,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-10-31 22:00:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 100 states have (on average 1.89) internal successors, (189), 184 states have internal predecessors, (189), 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) [2024-10-31 22:00:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:00:28,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:28,650 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:28,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1552832064, now seen corresponding path program 1 times [2024-10-31 22:00:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:28,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376990684] [2024-10-31 22:00:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:28,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:29,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376990684] [2024-10-31 22:00:29,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376990684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:29,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:29,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40221896] [2024-10-31 22:00:29,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:29,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:00:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:29,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:29,131 INFO L87 Difference]: Start difference. First operand has 192 states, 100 states have (on average 1.89) internal successors, (189), 184 states have internal predecessors, (189), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:00:29,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:29,199 INFO L93 Difference]: Finished difference Result 367 states and 398 transitions. [2024-10-31 22:00:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:29,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-10-31 22:00:29,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:29,218 INFO L225 Difference]: With dead ends: 367 [2024-10-31 22:00:29,218 INFO L226 Difference]: Without dead ends: 172 [2024-10-31 22:00:29,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:29,230 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:29,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:29,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-31 22:00:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-10-31 22:00:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 165 states have internal predecessors, (166), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:00:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 174 transitions. [2024-10-31 22:00:29,303 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 174 transitions. Word has length 15 [2024-10-31 22:00:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:29,304 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 174 transitions. [2024-10-31 22:00:29,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:00:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 174 transitions. [2024-10-31 22:00:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:00:29,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:29,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:29,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:29,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:29,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -794512385, now seen corresponding path program 1 times [2024-10-31 22:00:29,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:29,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211607017] [2024-10-31 22:00:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:29,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:29,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211607017] [2024-10-31 22:00:29,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211607017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:29,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:29,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:29,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014644712] [2024-10-31 22:00:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:29,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:29,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:29,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:29,479 INFO L87 Difference]: Start difference. First operand 172 states and 174 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:30,062 INFO L93 Difference]: Finished difference Result 309 states and 321 transitions. [2024-10-31 22:00:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-31 22:00:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:30,065 INFO L225 Difference]: With dead ends: 309 [2024-10-31 22:00:30,065 INFO L226 Difference]: Without dead ends: 253 [2024-10-31 22:00:30,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:30,070 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 82 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:30,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 127 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:00:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-31 22:00:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 247. [2024-10-31 22:00:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 169 states have (on average 1.5029585798816567) internal successors, (254), 239 states have internal predecessors, (254), 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) [2024-10-31 22:00:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2024-10-31 22:00:30,092 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 15 [2024-10-31 22:00:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:30,094 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2024-10-31 22:00:30,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2024-10-31 22:00:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:00:30,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:30,097 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:30,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:30,097 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:30,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1381401701, now seen corresponding path program 1 times [2024-10-31 22:00:30,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:30,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241983280] [2024-10-31 22:00:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:30,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:30,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241983280] [2024-10-31 22:00:30,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241983280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:30,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:30,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:30,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541724879] [2024-10-31 22:00:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:30,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:30,322 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:30,427 INFO L93 Difference]: Finished difference Result 266 states and 278 transitions. [2024-10-31 22:00:30,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-10-31 22:00:30,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:30,430 INFO L225 Difference]: With dead ends: 266 [2024-10-31 22:00:30,430 INFO L226 Difference]: Without dead ends: 261 [2024-10-31 22:00:30,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:30,432 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 58 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:30,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 296 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-31 22:00:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 254. [2024-10-31 22:00:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 246 states have internal predecessors, (261), 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) [2024-10-31 22:00:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2024-10-31 22:00:30,448 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 43 [2024-10-31 22:00:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:30,448 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 271 transitions. [2024-10-31 22:00:30,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 271 transitions. [2024-10-31 22:00:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 22:00:30,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:30,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:30,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:30,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:30,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash -382136867, now seen corresponding path program 1 times [2024-10-31 22:00:30,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:30,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939536985] [2024-10-31 22:00:30,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:30,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:30,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939536985] [2024-10-31 22:00:30,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939536985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:30,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:30,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:30,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751936948] [2024-10-31 22:00:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:30,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:30,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:30,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:30,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:30,655 INFO L87 Difference]: Start difference. First operand 254 states and 271 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:31,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:31,179 INFO L93 Difference]: Finished difference Result 265 states and 273 transitions. [2024-10-31 22:00:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:31,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-10-31 22:00:31,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:31,181 INFO L225 Difference]: With dead ends: 265 [2024-10-31 22:00:31,181 INFO L226 Difference]: Without dead ends: 260 [2024-10-31 22:00:31,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:31,183 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 81 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:31,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 255 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:00:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-31 22:00:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2024-10-31 22:00:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 176 states have (on average 1.4545454545454546) internal successors, (256), 246 states have internal predecessors, (256), 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) [2024-10-31 22:00:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 266 transitions. [2024-10-31 22:00:31,199 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 266 transitions. Word has length 45 [2024-10-31 22:00:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:31,199 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 266 transitions. [2024-10-31 22:00:31,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 266 transitions. [2024-10-31 22:00:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:00:31,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:31,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:31,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:31,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:31,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1038659119, now seen corresponding path program 1 times [2024-10-31 22:00:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:31,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212518094] [2024-10-31 22:00:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:31,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:31,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:31,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212518094] [2024-10-31 22:00:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212518094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:31,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76453999] [2024-10-31 22:00:31,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:31,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:31,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:31,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:31,328 INFO L87 Difference]: Start difference. First operand 254 states and 266 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:31,532 INFO L93 Difference]: Finished difference Result 264 states and 268 transitions. [2024-10-31 22:00:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:31,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-10-31 22:00:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:31,534 INFO L225 Difference]: With dead ends: 264 [2024-10-31 22:00:31,535 INFO L226 Difference]: Without dead ends: 226 [2024-10-31 22:00:31,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:31,537 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 125 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:31,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 246 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-31 22:00:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2024-10-31 22:00:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 142 states have (on average 1.5352112676056338) internal successors, (218), 212 states have internal predecessors, (218), 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) [2024-10-31 22:00:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 228 transitions. [2024-10-31 22:00:31,564 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 228 transitions. Word has length 46 [2024-10-31 22:00:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:31,564 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 228 transitions. [2024-10-31 22:00:31,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:31,565 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 228 transitions. [2024-10-31 22:00:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-31 22:00:31,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:31,569 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:31,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:31,570 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:31,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2035500068, now seen corresponding path program 1 times [2024-10-31 22:00:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:31,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044871245] [2024-10-31 22:00:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-31 22:00:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044871245] [2024-10-31 22:00:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044871245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:31,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:31,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:31,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430887321] [2024-10-31 22:00:31,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:31,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:31,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:31,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:31,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:31,698 INFO L87 Difference]: Start difference. First operand 220 states and 228 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:31,724 INFO L93 Difference]: Finished difference Result 222 states and 228 transitions. [2024-10-31 22:00:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:31,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-10-31 22:00:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:31,726 INFO L225 Difference]: With dead ends: 222 [2024-10-31 22:00:31,727 INFO L226 Difference]: Without dead ends: 220 [2024-10-31 22:00:31,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:31,729 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:31,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-31 22:00:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-10-31 22:00:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 142 states have (on average 1.5211267605633803) internal successors, (216), 212 states have internal predecessors, (216), 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) [2024-10-31 22:00:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 226 transitions. [2024-10-31 22:00:31,750 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 226 transitions. Word has length 55 [2024-10-31 22:00:31,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:31,750 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 226 transitions. [2024-10-31 22:00:31,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:31,751 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 226 transitions. [2024-10-31 22:00:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-31 22:00:31,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:31,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:31,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:31,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:31,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1567344674, now seen corresponding path program 1 times [2024-10-31 22:00:31,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:31,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472985404] [2024-10-31 22:00:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:31,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758625041] [2024-10-31 22:00:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:31,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:31,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:31,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:31,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:31,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:31,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:31,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472985404] [2024-10-31 22:00:31,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:31,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758625041] [2024-10-31 22:00:31,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758625041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:31,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:31,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:31,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577550819] [2024-10-31 22:00:31,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:32,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:32,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:32,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:32,001 INFO L87 Difference]: Start difference. First operand 220 states and 226 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:32,531 INFO L93 Difference]: Finished difference Result 359 states and 375 transitions. [2024-10-31 22:00:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:32,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-31 22:00:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:32,535 INFO L225 Difference]: With dead ends: 359 [2024-10-31 22:00:32,535 INFO L226 Difference]: Without dead ends: 305 [2024-10-31 22:00:32,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:32,536 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 90 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:32,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 153 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:00:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-10-31 22:00:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2024-10-31 22:00:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 219 states have (on average 1.4018264840182648) internal successors, (307), 289 states have internal predecessors, (307), 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) [2024-10-31 22:00:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 321 transitions. [2024-10-31 22:00:32,550 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 321 transitions. Word has length 60 [2024-10-31 22:00:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:32,550 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 321 transitions. [2024-10-31 22:00:32,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 321 transitions. [2024-10-31 22:00:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-31 22:00:32,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:32,552 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:32,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:32,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:00:32,753 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:32,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 787058728, now seen corresponding path program 1 times [2024-10-31 22:00:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:32,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974455840] [2024-10-31 22:00:32,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:32,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:32,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-31 22:00:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:32,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974455840] [2024-10-31 22:00:32,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974455840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:32,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:32,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:32,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897954402] [2024-10-31 22:00:32,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:32,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:32,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:32,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:32,958 INFO L87 Difference]: Start difference. First operand 299 states and 321 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:33,439 INFO L93 Difference]: Finished difference Result 300 states and 321 transitions. [2024-10-31 22:00:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:33,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2024-10-31 22:00:33,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:33,443 INFO L225 Difference]: With dead ends: 300 [2024-10-31 22:00:33,443 INFO L226 Difference]: Without dead ends: 299 [2024-10-31 22:00:33,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:33,444 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 39 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:33,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 302 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:00:33,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-31 22:00:33,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-10-31 22:00:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 219 states have (on average 1.3972602739726028) internal successors, (306), 289 states have internal predecessors, (306), 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) [2024-10-31 22:00:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 320 transitions. [2024-10-31 22:00:33,464 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 320 transitions. Word has length 66 [2024-10-31 22:00:33,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:33,465 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 320 transitions. [2024-10-31 22:00:33,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:33,466 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 320 transitions. [2024-10-31 22:00:33,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 22:00:33,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:33,470 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:33,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:33,470 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:33,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:33,471 INFO L85 PathProgramCache]: Analyzing trace with hash 668996806, now seen corresponding path program 1 times [2024-10-31 22:00:33,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:33,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867339192] [2024-10-31 22:00:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:33,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774986970] [2024-10-31 22:00:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:33,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:33,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:33,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:33,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:33,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:33,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-31 22:00:33,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:33,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:33,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867339192] [2024-10-31 22:00:33,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:33,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774986970] [2024-10-31 22:00:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774986970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:33,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:33,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:33,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28037824] [2024-10-31 22:00:33,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:33,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:33,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:33,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:33,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:33,880 INFO L87 Difference]: Start difference. First operand 299 states and 320 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:33,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:33,980 INFO L93 Difference]: Finished difference Result 299 states and 320 transitions. [2024-10-31 22:00:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:33,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 96 [2024-10-31 22:00:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:33,982 INFO L225 Difference]: With dead ends: 299 [2024-10-31 22:00:33,982 INFO L226 Difference]: Without dead ends: 296 [2024-10-31 22:00:33,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:33,983 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 95 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:33,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 159 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-31 22:00:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-10-31 22:00:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 219 states have (on average 1.3744292237442923) internal successors, (301), 286 states have internal predecessors, (301), 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) [2024-10-31 22:00:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 315 transitions. [2024-10-31 22:00:33,996 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 315 transitions. Word has length 96 [2024-10-31 22:00:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:33,997 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 315 transitions. [2024-10-31 22:00:33,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 315 transitions. [2024-10-31 22:00:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:00:33,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:33,999 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:34,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:00:34,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:00:34,200 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:34,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -735935390, now seen corresponding path program 1 times [2024-10-31 22:00:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634273856] [2024-10-31 22:00:34,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:34,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:34,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715854374] [2024-10-31 22:00:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:34,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:34,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:34,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:34,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:00:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:34,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:00:34,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:34,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:35,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634273856] [2024-10-31 22:00:35,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715854374] [2024-10-31 22:00:35,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715854374] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:35,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:35,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-31 22:00:35,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457694613] [2024-10-31 22:00:35,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:35,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:00:35,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:00:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:00:35,129 INFO L87 Difference]: Start difference. First operand 296 states and 315 transitions. Second operand has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2024-10-31 22:00:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:36,310 INFO L93 Difference]: Finished difference Result 368 states and 383 transitions. [2024-10-31 22:00:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:36,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 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 97 [2024-10-31 22:00:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:36,314 INFO L225 Difference]: With dead ends: 368 [2024-10-31 22:00:36,314 INFO L226 Difference]: Without dead ends: 361 [2024-10-31 22:00:36,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:36,315 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 286 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:36,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 305 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-31 22:00:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-10-31 22:00:36,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 334. [2024-10-31 22:00:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 258 states have (on average 1.3953488372093024) internal successors, (360), 324 states have internal predecessors, (360), 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) [2024-10-31 22:00:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 374 transitions. [2024-10-31 22:00:36,341 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 374 transitions. Word has length 97 [2024-10-31 22:00:36,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:36,342 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 374 transitions. [2024-10-31 22:00:36,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2024-10-31 22:00:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 374 transitions. [2024-10-31 22:00:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-31 22:00:36,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:36,344 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:36,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:00:36,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:36,552 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-10-31 22:00:36,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:36,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1339160504, now seen corresponding path program 1 times [2024-10-31 22:00:36,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:36,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415251305] [2024-10-31 22:00:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:36,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:36,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366340210] [2024-10-31 22:00:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:36,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:36,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:36,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:36,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d0853d-2538-424b-9b36-dea22a8a9e6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:00:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:36,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:36,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:37,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415251305] [2024-10-31 22:00:38,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366340210] [2024-10-31 22:00:38,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366340210] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-10-31 22:00:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691189994] [2024-10-31 22:00:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:38,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:38,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:38,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:38,792 INFO L87 Difference]: Start difference. First operand 334 states and 374 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:43,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:00:48,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:00:52,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:00:55,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:00:59,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []