./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86c4ccee9690ccdd33683565314ba095e56520aa142914bd8063fc7c4c92940d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:57:18,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:57:18,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:57:18,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:57:18,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:57:18,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:57:18,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:57:18,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:57:18,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:57:18,649 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:57:18,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:57:18,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:57:18,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:57:18,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:57:18,652 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:57:18,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:57:18,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:57:18,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:57:18,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:57:18,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:57:18,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:57:18,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:57:18,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:57:18,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:57:18,657 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:57:18,658 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:57:18,658 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:57:18,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:57:18,659 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:57:18,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:57:18,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:57:18,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:57:18,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:57:18,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:57:18,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:57:18,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:57:18,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:57:18,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:57:18,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:57:18,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:57:18,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:57:18,663 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:57:18,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:57:18,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:57:18,664 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_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86c4ccee9690ccdd33683565314ba095e56520aa142914bd8063fc7c4c92940d [2023-11-29 03:57:18,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:57:18,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:57:18,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:57:18,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:57:18,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:57:18,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2023-11-29 03:57:21,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:57:21,872 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:57:21,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2023-11-29 03:57:21,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/data/77584ee9f/69ba1eb3e36c4d5eb52ad2b7d6db28bc/FLAGeb0071ba5 [2023-11-29 03:57:21,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/data/77584ee9f/69ba1eb3e36c4d5eb52ad2b7d6db28bc [2023-11-29 03:57:21,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:57:21,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:57:21,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:57:21,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:57:21,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:57:21,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:57:21" (1/1) ... [2023-11-29 03:57:21,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722fe5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:21, skipping insertion in model container [2023-11-29 03:57:21,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:57:21" (1/1) ... [2023-11-29 03:57:21,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:57:22,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:57:22,264 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:57:22,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:57:22,334 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:57:22,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22 WrapperNode [2023-11-29 03:57:22,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:57:22,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:57:22,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:57:22,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:57:22,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,382 INFO L138 Inliner]: procedures = 117, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-29 03:57:22,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:57:22,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:57:22,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:57:22,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:57:22,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,400 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,416 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [3, 3]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 4 writes are split as follows [2, 2]. [2023-11-29 03:57:22,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:57:22,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:57:22,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:57:22,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:57:22,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (1/1) ... [2023-11-29 03:57:22,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:57:22,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:22,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:57:22,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:57:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:57:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:57:22,598 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:57:22,600 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:57:22,768 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:57:22,799 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:57:22,800 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 03:57:22,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:57:22 BoogieIcfgContainer [2023-11-29 03:57:22,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:57:22,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:57:22,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:57:22,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:57:22,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:57:21" (1/3) ... [2023-11-29 03:57:22,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427e3f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:57:22, skipping insertion in model container [2023-11-29 03:57:22,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:57:22" (2/3) ... [2023-11-29 03:57:22,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427e3f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:57:22, skipping insertion in model container [2023-11-29 03:57:22,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:57:22" (3/3) ... [2023-11-29 03:57:22,810 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca-2.i [2023-11-29 03:57:22,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:57:22,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-29 03:57:22,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:57:22,883 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b836a1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:57:22,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-29 03:57:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.92) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:57:22,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:22,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:57:22,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:22,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash 123911824, now seen corresponding path program 1 times [2023-11-29 03:57:22,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:22,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573957606] [2023-11-29 03:57:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:22,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573957606] [2023-11-29 03:57:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573957606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:57:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773559653] [2023-11-29 03:57:23,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,121 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.92) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,166 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2023-11-29 03:57:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:57:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,177 INFO L225 Difference]: With dead ends: 62 [2023-11-29 03:57:23,177 INFO L226 Difference]: Without dead ends: 30 [2023-11-29 03:57:23,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,184 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 29 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-29 03:57:23,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-29 03:57:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.65) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-29 03:57:23,213 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 5 [2023-11-29 03:57:23,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,213 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-29 03:57:23,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-29 03:57:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:57:23,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:57:23,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash -453700700, now seen corresponding path program 1 times [2023-11-29 03:57:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802024661] [2023-11-29 03:57:23,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802024661] [2023-11-29 03:57:23,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802024661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:57:23,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939695048] [2023-11-29 03:57:23,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,286 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,323 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2023-11-29 03:57:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 03:57:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,325 INFO L225 Difference]: With dead ends: 58 [2023-11-29 03:57:23,325 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 03:57:23,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,328 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 44 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 03:57:23,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2023-11-29 03:57:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-29 03:57:23,337 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 6 [2023-11-29 03:57:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,338 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-29 03:57:23,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-29 03:57:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:57:23,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:57:23,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash -451853658, now seen corresponding path program 1 times [2023-11-29 03:57:23,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911062010] [2023-11-29 03:57:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911062010] [2023-11-29 03:57:23,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911062010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 03:57:23,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774700410] [2023-11-29 03:57:23,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,417 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,442 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2023-11-29 03:57:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 03:57:23,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,443 INFO L225 Difference]: With dead ends: 46 [2023-11-29 03:57:23,443 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 03:57:23,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,445 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 20 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 03:57:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2023-11-29 03:57:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.55) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-29 03:57:23,452 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 6 [2023-11-29 03:57:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,452 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-29 03:57:23,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-29 03:57:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:57:23,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:57:23,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2080295614, now seen corresponding path program 1 times [2023-11-29 03:57:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664906503] [2023-11-29 03:57:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664906503] [2023-11-29 03:57:23,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664906503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:57:23,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758385143] [2023-11-29 03:57:23,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:57:23,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:57:23,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:23,549 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,595 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-11-29 03:57:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:57:23,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 03:57:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,597 INFO L225 Difference]: With dead ends: 74 [2023-11-29 03:57:23,597 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 03:57:23,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:23,599 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 19 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 60 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 03:57:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2023-11-29 03:57:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-29 03:57:23,606 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 8 [2023-11-29 03:57:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,607 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-29 03:57:23,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,607 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-29 03:57:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:57:23,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:57:23,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash -439664320, now seen corresponding path program 1 times [2023-11-29 03:57:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581599617] [2023-11-29 03:57:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581599617] [2023-11-29 03:57:23,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581599617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:57:23,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996889902] [2023-11-29 03:57:23,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:57:23,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:57:23,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:23,689 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,725 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-29 03:57:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:57:23,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 03:57:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,726 INFO L225 Difference]: With dead ends: 41 [2023-11-29 03:57:23,727 INFO L226 Difference]: Without dead ends: 39 [2023-11-29 03:57:23,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:57:23,728 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 72 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-29 03:57:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-29 03:57:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-29 03:57:23,736 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 8 [2023-11-29 03:57:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,736 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-29 03:57:23,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-29 03:57:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 03:57:23,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:57:23,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash 64581816, now seen corresponding path program 1 times [2023-11-29 03:57:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294557281] [2023-11-29 03:57:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294557281] [2023-11-29 03:57:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294557281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:57:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696029339] [2023-11-29 03:57:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,780 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,804 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-11-29 03:57:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 03:57:23,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,806 INFO L225 Difference]: With dead ends: 38 [2023-11-29 03:57:23,806 INFO L226 Difference]: Without dead ends: 36 [2023-11-29 03:57:23,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,808 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-29 03:57:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-29 03:57:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-29 03:57:23,816 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 9 [2023-11-29 03:57:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,817 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-29 03:57:23,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-29 03:57:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:57:23,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:57:23,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2002036370, now seen corresponding path program 1 times [2023-11-29 03:57:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104530921] [2023-11-29 03:57:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104530921] [2023-11-29 03:57:23,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104530921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:57:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151706934] [2023-11-29 03:57:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,859 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,893 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2023-11-29 03:57:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 03:57:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,894 INFO L225 Difference]: With dead ends: 68 [2023-11-29 03:57:23,895 INFO L226 Difference]: Without dead ends: 61 [2023-11-29 03:57:23,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,896 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-29 03:57:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2023-11-29 03:57:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2023-11-29 03:57:23,908 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 10 [2023-11-29 03:57:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,908 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2023-11-29 03:57:23,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2023-11-29 03:57:23,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:57:23,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:57:23,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1192689744, now seen corresponding path program 1 times [2023-11-29 03:57:23,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709817998] [2023-11-29 03:57:23,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709817998] [2023-11-29 03:57:23,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709817998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:23,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:23,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 03:57:23,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738173846] [2023-11-29 03:57:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:57:23,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:57:23,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,946 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:23,969 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2023-11-29 03:57:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:57:23,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 03:57:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:23,970 INFO L225 Difference]: With dead ends: 57 [2023-11-29 03:57:23,970 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 03:57:23,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:57:23,972 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:23,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 03:57:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2023-11-29 03:57:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.36) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-29 03:57:23,978 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2023-11-29 03:57:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:23,979 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-29 03:57:23,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-29 03:57:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:57:23,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:23,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:23,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:57:23,980 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:23,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash -188392770, now seen corresponding path program 1 times [2023-11-29 03:57:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179282104] [2023-11-29 03:57:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:24,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179282104] [2023-11-29 03:57:24,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179282104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:24,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:24,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:57:24,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246550309] [2023-11-29 03:57:24,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:24,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:57:24,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:57:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:24,035 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:24,067 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2023-11-29 03:57:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:57:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 03:57:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:24,068 INFO L225 Difference]: With dead ends: 57 [2023-11-29 03:57:24,068 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 03:57:24,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:24,070 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:24,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 03:57:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-11-29 03:57:24,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 39 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2023-11-29 03:57:24,078 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 12 [2023-11-29 03:57:24,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:24,079 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2023-11-29 03:57:24,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2023-11-29 03:57:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:57:24,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:24,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:24,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:57:24,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:24,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash -581419780, now seen corresponding path program 1 times [2023-11-29 03:57:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:24,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715271066] [2023-11-29 03:57:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715271066] [2023-11-29 03:57:24,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715271066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:24,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:57:24,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:57:24,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713058210] [2023-11-29 03:57:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:24,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:57:24,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:57:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:57:24,130 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:24,157 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2023-11-29 03:57:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:57:24,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 03:57:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:24,159 INFO L225 Difference]: With dead ends: 47 [2023-11-29 03:57:24,159 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 03:57:24,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:57:24,160 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:24,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 03:57:24,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 03:57:24,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-11-29 03:57:24,168 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 12 [2023-11-29 03:57:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:24,168 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-11-29 03:57:24,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-11-29 03:57:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 03:57:24,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:24,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:24,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:57:24,170 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:24,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1557847387, now seen corresponding path program 1 times [2023-11-29 03:57:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:24,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286797087] [2023-11-29 03:57:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:24,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286797087] [2023-11-29 03:57:24,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286797087] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:24,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970088284] [2023-11-29 03:57:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:24,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:24,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:24,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:57:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:57:24,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:57:24,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970088284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:24,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:24,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 03:57:24,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786254989] [2023-11-29 03:57:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:24,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:57:24,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:24,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:57:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:57:24,399 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:24,442 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2023-11-29 03:57:24,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:57:24,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 03:57:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:24,443 INFO L225 Difference]: With dead ends: 46 [2023-11-29 03:57:24,443 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 03:57:24,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:57:24,444 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:24,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 03:57:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2023-11-29 03:57:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2023-11-29 03:57:24,452 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 13 [2023-11-29 03:57:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:24,453 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2023-11-29 03:57:24,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2023-11-29 03:57:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 03:57:24,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:24,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:24,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:57:24,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:57:24,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:24,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:24,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1048628804, now seen corresponding path program 1 times [2023-11-29 03:57:24,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:24,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816416328] [2023-11-29 03:57:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816416328] [2023-11-29 03:57:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816416328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343147219] [2023-11-29 03:57:24,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:24,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:24,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:24,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:57:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:57:24,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343147219] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:24,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:57:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-29 03:57:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868199949] [2023-11-29 03:57:24,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:24,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:57:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:57:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:57:24,893 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:24,979 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2023-11-29 03:57:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:57:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 03:57:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:24,982 INFO L225 Difference]: With dead ends: 79 [2023-11-29 03:57:24,982 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 03:57:24,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:57:24,983 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:24,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 112 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 03:57:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2023-11-29 03:57:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 73 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2023-11-29 03:57:24,995 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 14 [2023-11-29 03:57:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:24,995 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2023-11-29 03:57:24,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2023-11-29 03:57:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 03:57:24,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:24,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:25,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:57:25,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:57:25,202 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:25,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:25,203 INFO L85 PathProgramCache]: Analyzing trace with hash -817746041, now seen corresponding path program 1 times [2023-11-29 03:57:25,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:25,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073186982] [2023-11-29 03:57:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:25,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:25,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073186982] [2023-11-29 03:57:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073186982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:25,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821709624] [2023-11-29 03:57:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:25,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:25,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:57:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:25,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:57:25,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:25,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:57:25,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821709624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:57:25,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:25,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 03:57:25,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335846122] [2023-11-29 03:57:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:57:25,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:57:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:57:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:57:25,383 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:25,422 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2023-11-29 03:57:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:57:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 03:57:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:25,423 INFO L225 Difference]: With dead ends: 74 [2023-11-29 03:57:25,423 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 03:57:25,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:57:25,424 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:25,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 72 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 03:57:25,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-29 03:57:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2023-11-29 03:57:25,433 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 17 [2023-11-29 03:57:25,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:25,433 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2023-11-29 03:57:25,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2023-11-29 03:57:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:57:25,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:25,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:25,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:57:25,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:57:25,640 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:25,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash 419676590, now seen corresponding path program 1 times [2023-11-29 03:57:25,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:25,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707804731] [2023-11-29 03:57:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:25,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:25,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:25,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707804731] [2023-11-29 03:57:25,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707804731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:25,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925757794] [2023-11-29 03:57:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:25,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:25,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:25,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:57:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:25,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:57:25,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:25,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925757794] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:25,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:57:25,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-29 03:57:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072821896] [2023-11-29 03:57:25,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:25,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:57:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:25,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:57:25,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:57:25,850 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:25,920 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2023-11-29 03:57:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:57:25,920 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-29 03:57:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:25,921 INFO L225 Difference]: With dead ends: 89 [2023-11-29 03:57:25,921 INFO L226 Difference]: Without dead ends: 88 [2023-11-29 03:57:25,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:57:25,922 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:25,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 50 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:57:25,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-29 03:57:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-29 03:57:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 86 states have (on average 1.1162790697674418) internal successors, (96), 87 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-11-29 03:57:25,933 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 18 [2023-11-29 03:57:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:25,933 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-11-29 03:57:25,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:25,933 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-11-29 03:57:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:57:25,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:25,935 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2023-11-29 03:57:25,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:57:26,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:57:26,155 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:26,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash 923338047, now seen corresponding path program 2 times [2023-11-29 03:57:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562299950] [2023-11-29 03:57:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:26,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562299950] [2023-11-29 03:57:26,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562299950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188683341] [2023-11-29 03:57:26,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:57:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:26,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:26,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:57:26,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:57:26,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:57:26,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:57:26,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:26,478 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 03:57:26,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 03:57:26,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188683341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:26,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:57:26,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 15 [2023-11-29 03:57:26,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145635459] [2023-11-29 03:57:26,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:26,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:26,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:26,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:57:26,551 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:26,750 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2023-11-29 03:57:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:57:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-29 03:57:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:26,752 INFO L225 Difference]: With dead ends: 103 [2023-11-29 03:57:26,752 INFO L226 Difference]: Without dead ends: 71 [2023-11-29 03:57:26,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:57:26,755 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 59 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:26,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 45 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:57:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-29 03:57:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 41. [2023-11-29 03:57:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.075) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2023-11-29 03:57:26,760 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 29 [2023-11-29 03:57:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:26,761 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2023-11-29 03:57:26,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:26,761 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2023-11-29 03:57:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:57:26,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:26,762 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:26,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:57:26,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:57:26,962 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-29 03:57:26,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 57898265, now seen corresponding path program 2 times [2023-11-29 03:57:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478052116] [2023-11-29 03:57:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:27,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478052116] [2023-11-29 03:57:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478052116] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810731747] [2023-11-29 03:57:27,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:57:27,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:27,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:27,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:57:27,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:57:27,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:57:27,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:57:27,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 03:57:27,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 03:57:27,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810731747] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:27,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:57:27,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 15 [2023-11-29 03:57:27,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464679045] [2023-11-29 03:57:27,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:27,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:27,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:27,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:57:27,356 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:27,543 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-11-29 03:57:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:57:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-11-29 03:57:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:27,544 INFO L225 Difference]: With dead ends: 46 [2023-11-29 03:57:27,544 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:57:27,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:57:27,546 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:27,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:57:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:57:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:57:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:57:27,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2023-11-29 03:57:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:27,548 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:57:27,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:57:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:57:27,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:57:27,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-29 03:57:27,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-29 03:57:27,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-29 03:57:27,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-29 03:57:27,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-29 03:57:27,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-29 03:57:27,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-11-29 03:57:27,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-11-29 03:57:27,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-29 03:57:27,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-29 03:57:27,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-29 03:57:27,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-29 03:57:27,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:57:27,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:57:27,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:57:28,034 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,034 INFO L899 garLoopResultBuilder]: For program point L539-1(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,034 INFO L899 garLoopResultBuilder]: For program point L539-2(lines 539 542) no Hoare annotation was computed. [2023-11-29 03:57:28,034 INFO L899 garLoopResultBuilder]: For program point L539-5(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,034 INFO L899 garLoopResultBuilder]: For program point L539-6(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L895 garLoopResultBuilder]: At program point L539-7(lines 539 542) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~length2~0#1| 2147483647) (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2)))) [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point L539-8(lines 539 542) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point L544-1(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,035 INFO L899 garLoopResultBuilder]: For program point L544-2(lines 544 547) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point L544-5(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point L544-6(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L895 garLoopResultBuilder]: At program point L544-7(lines 544 547) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~1#1| 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse3))) [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point L544-8(lines 544 547) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 549) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point L549-1(line 549) no Hoare annotation was computed. [2023-11-29 03:57:28,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 533 535) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 549) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 521 524) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point L550(line 550) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L895 garLoopResultBuilder]: At program point L521-3(lines 521 524) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point L550-1(line 550) no Hoare annotation was computed. [2023-11-29 03:57:28,037 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 526) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 539) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 532) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point L530-2(lines 527 552) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 523) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-29 03:57:28,038 INFO L895 garLoopResultBuilder]: At program point L518-2(lines 518 525) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-29 03:57:28,041 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:28,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:57:28,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-29 03:57:28,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-29 03:57:28,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:57:28 BoogieIcfgContainer [2023-11-29 03:57:28,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:57:28,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:57:28,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:57:28,058 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:57:28,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:57:22" (3/4) ... [2023-11-29 03:57:28,060 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:57:28,069 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 03:57:28,069 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:57:28,069 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 03:57:28,070 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:57:28,166 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:57:28,166 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:57:28,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:57:28,167 INFO L158 Benchmark]: Toolchain (without parser) took 6258.82ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 122.9MB in the beginning and 101.1MB in the end (delta: 21.9MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,167 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:57:28,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.15ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 106.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.19ms. Allocated memory is still 167.8MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,168 INFO L158 Benchmark]: Boogie Preprocessor took 47.56ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,169 INFO L158 Benchmark]: RCFGBuilder took 368.62ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 86.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,169 INFO L158 Benchmark]: TraceAbstraction took 5254.14ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 85.8MB in the beginning and 106.3MB in the end (delta: -20.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,169 INFO L158 Benchmark]: Witness Printer took 108.97ms. Allocated memory is still 201.3MB. Free memory was 106.3MB in the beginning and 101.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:57:28,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.15ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 106.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.19ms. Allocated memory is still 167.8MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.56ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.62ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 86.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5254.14ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 85.8MB in the beginning and 106.3MB in the end (delta: -20.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 108.97ms. Allocated memory is still 201.3MB. Free memory was 106.3MB in the beginning and 101.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 539]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 539]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 539]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 539]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 549]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 549]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 778 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 489 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 492 IncrementalHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 289 mSDtfsCounter, 492 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=14, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 106 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 22 NumberOfFragments, 70 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1287 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 383 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 334 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 1068 SizeOfPredicates, 14 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 176/346 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: ((length2 <= 2147483647) && (((((1 <= i) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647)) || ((((i == 0) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647)))) - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((((((i == 0) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647)) && (length2 <= 2147483647)) || (((((1 <= length1) && (1 <= length2)) && (length1 <= 2147483647)) && (1 <= i)) && (length2 <= 2147483647))) RESULT: Ultimate proved your program to be correct! [2023-11-29 03:57:28,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff04bc0-c1db-4819-a19b-a15c56b072ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE