./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:02,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:02,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:56:02,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:02,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:02,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:02,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:02,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:02,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:02,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:02,305 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:02,306 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:02,306 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:02,308 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:02,309 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:02,309 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:02,310 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:02,310 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:02,310 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:02,311 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:02,311 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:02,312 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:02,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:02,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:02,314 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:56:02,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:02,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:56:02,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:02,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:02,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:02,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:02,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:56:02,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:56:02,319 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:56:02,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:02,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:02,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:02,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:02,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:02,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:02,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:02,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:02,322 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:02,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:02,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:02,323 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:02,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:02,323 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 [2023-11-12 00:56:02,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:02,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:02,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:02,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:02,674 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:02,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2023-11-12 00:56:05,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:06,063 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:06,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2023-11-12 00:56:06,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/data/5006d732d/25475b1a72594a859d4bb1205b09b238/FLAGf78a3c6cd [2023-11-12 00:56:06,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/data/5006d732d/25475b1a72594a859d4bb1205b09b238 [2023-11-12 00:56:06,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:06,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:06,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:06,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:06,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:06,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37379c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06, skipping insertion in model container [2023-11-12 00:56:06,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:06,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:06,378 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:06,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:06,415 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:06,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06 WrapperNode [2023-11-12 00:56:06,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:06,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:06,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:06,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:06,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,454 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2023-11-12 00:56:06,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:06,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:06,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:06,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:06,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:06,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:06,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:06,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:06,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (1/1) ... [2023-11-12 00:56:06,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:06,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:06,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:06,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:56:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:56:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:56:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:06,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:06,694 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:06,696 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:06,939 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:07,025 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:07,025 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:56:07,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:07 BoogieIcfgContainer [2023-11-12 00:56:07,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:07,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:07,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:07,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:07,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:06" (1/3) ... [2023-11-12 00:56:07,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3833a34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:07, skipping insertion in model container [2023-11-12 00:56:07,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:06" (2/3) ... [2023-11-12 00:56:07,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3833a34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:07, skipping insertion in model container [2023-11-12 00:56:07,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:07" (3/3) ... [2023-11-12 00:56:07,038 INFO L112 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2023-11-12 00:56:07,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:07,111 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 00:56:07,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:07,219 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=FINITE_AUTOMATA, 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;@36752d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:07,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-12 00:56:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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) [2023-11-12 00:56:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:56:07,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:07,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:56:07,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:07,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash 118061, now seen corresponding path program 1 times [2023-11-12 00:56:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:07,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513619747] [2023-11-12 00:56:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:07,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:07,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:07,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513619747] [2023-11-12 00:56:07,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513619747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:07,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:07,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:07,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612284709] [2023-11-12 00:56:07,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:07,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:07,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:07,656 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-12 00:56:07,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:07,771 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2023-11-12 00:56:07,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-12 00:56:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:07,785 INFO L225 Difference]: With dead ends: 22 [2023-11-12 00:56:07,785 INFO L226 Difference]: Without dead ends: 19 [2023-11-12 00:56:07,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:07,792 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:07,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-12 00:56:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-12 00:56:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 18 states have internal predecessors, (22), 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) [2023-11-12 00:56:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-11-12 00:56:07,829 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 3 [2023-11-12 00:56:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:07,829 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-12 00:56:07,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-12 00:56:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-12 00:56:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:56:07,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:07,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:56:07,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:56:07,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:07,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash 3666437, now seen corresponding path program 1 times [2023-11-12 00:56:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:07,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828307525] [2023-11-12 00:56:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:07,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:07,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:07,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828307525] [2023-11-12 00:56:07,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828307525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:07,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:07,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416362502] [2023-11-12 00:56:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:07,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:07,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:07,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:07,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:07,939 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 00:56:07,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:07,960 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2023-11-12 00:56:07,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:07,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-12 00:56:07,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:07,962 INFO L225 Difference]: With dead ends: 29 [2023-11-12 00:56:07,962 INFO L226 Difference]: Without dead ends: 19 [2023-11-12 00:56:07,963 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 [2023-11-12 00:56:07,964 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:07,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:07,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-12 00:56:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-12 00:56:07,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-11-12 00:56:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-12 00:56:07,970 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 4 [2023-11-12 00:56:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:07,970 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-12 00:56:07,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 00:56:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-12 00:56:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:56:07,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:07,971 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 00:56:07,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:56:07,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:07,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash -777764137, now seen corresponding path program 1 times [2023-11-12 00:56:07,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:07,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581929341] [2023-11-12 00:56:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:07,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:08,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581929341] [2023-11-12 00:56:08,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581929341] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769147182] [2023-11-12 00:56:08,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:08,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:08,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:08,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:08,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:56:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:08,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:56:08,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:08,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769147182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:56:08,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-12 00:56:08,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754490618] [2023-11-12 00:56:08,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:08,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:56:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:08,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:56:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:56:08,241 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-12 00:56:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:08,298 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-11-12 00:56:08,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:08,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-12 00:56:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:08,300 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:56:08,300 INFO L226 Difference]: Without dead ends: 18 [2023-11-12 00:56:08,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:56:08,302 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:08,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 40 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-12 00:56:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-12 00:56:08,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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) [2023-11-12 00:56:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-11-12 00:56:08,308 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 6 [2023-11-12 00:56:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:08,308 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-11-12 00:56:08,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-12 00:56:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-12 00:56:08,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:56:08,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:08,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-12 00:56:08,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:56:08,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:08,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:08,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1659115575, now seen corresponding path program 1 times [2023-11-12 00:56:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901829049] [2023-11-12 00:56:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:08,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:08,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901829049] [2023-11-12 00:56:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901829049] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367433349] [2023-11-12 00:56:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:08,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:08,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:56:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:08,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:56:08,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:08,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:08,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367433349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1297166637] [2023-11-12 00:56:08,945 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-11-12 00:56:08,945 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:08,949 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:08,955 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:08,956 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:10,392 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:10,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '256#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |ULTIMATE.start_init_~size#1| 1000000) (<= 2 |ULTIMATE.start_init_#in~a#1.base|) (<= 2147483647 |ULTIMATE.start_init_#t~post1#1|) (= |ULTIMATE.start_main_~flag~0#1| 0) (= 1000000 |ULTIMATE.start_init_#in~size#1|) (<= 2 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_init_~i~0#1|) (<= 2 |ULTIMATE.start_init_~a#1.base|))' at error location [2023-11-12 00:56:10,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:56:10,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:10,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-12 00:56:10,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118537260] [2023-11-12 00:56:10,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:56:10,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:56:10,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:56:10,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:56:10,958 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-11-12 00:56:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:11,094 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2023-11-12 00:56:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:56:11,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 7 [2023-11-12 00:56:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:11,097 INFO L225 Difference]: With dead ends: 28 [2023-11-12 00:56:11,097 INFO L226 Difference]: Without dead ends: 27 [2023-11-12 00:56:11,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-12 00:56:11,099 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:11,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:11,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-12 00:56:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-12 00:56:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 26 states have internal predecessors, (32), 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) [2023-11-12 00:56:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2023-11-12 00:56:11,112 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 7 [2023-11-12 00:56:11,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:11,112 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2023-11-12 00:56:11,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-11-12 00:56:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-12 00:56:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:56:11,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:11,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:11,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:11,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:11,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:11,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1659122075, now seen corresponding path program 1 times [2023-11-12 00:56:11,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:11,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058160542] [2023-11-12 00:56:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:11,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:56:11,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:11,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058160542] [2023-11-12 00:56:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058160542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:11,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:11,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:11,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819089985] [2023-11-12 00:56:11,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:11,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:11,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:11,402 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 00:56:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:11,440 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-11-12 00:56:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:11,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-12 00:56:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:11,442 INFO L225 Difference]: With dead ends: 42 [2023-11-12 00:56:11,443 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 00:56:11,444 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 [2023-11-12 00:56:11,447 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:11,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 00:56:11,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2023-11-12 00:56:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.4) internal successors, (35), 29 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) [2023-11-12 00:56:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-12 00:56:11,479 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 7 [2023-11-12 00:56:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:11,481 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-12 00:56:11,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 00:56:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-12 00:56:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:56:11,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:11,485 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:11,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:56:11,485 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:11,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash 422164332, now seen corresponding path program 1 times [2023-11-12 00:56:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:11,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308314807] [2023-11-12 00:56:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:11,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:11,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308314807] [2023-11-12 00:56:11,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308314807] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:11,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543868089] [2023-11-12 00:56:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:11,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:11,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:56:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:56:11,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:11,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:11,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543868089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:11,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1766239265] [2023-11-12 00:56:11,760 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-12 00:56:11,760 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:11,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:11,761 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:11,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:14,198 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:14,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1766239265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:14,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:14,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 14 [2023-11-12 00:56:14,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913404053] [2023-11-12 00:56:14,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:14,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:56:14,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:14,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:56:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:56:14,966 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2023-11-12 00:56:16,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:56:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:17,094 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2023-11-12 00:56:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:17,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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 10 [2023-11-12 00:56:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:17,095 INFO L225 Difference]: With dead ends: 30 [2023-11-12 00:56:17,096 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 00:56:17,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:56:17,097 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:17,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:56:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 00:56:17,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 00:56:17,105 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) [2023-11-12 00:56:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-12 00:56:17,106 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2023-11-12 00:56:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:17,106 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-12 00:56:17,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2023-11-12 00:56:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-12 00:56:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:56:17,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:17,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:17,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:17,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:17,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:17,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash 202191828, now seen corresponding path program 1 times [2023-11-12 00:56:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:17,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602037555] [2023-11-12 00:56:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:56:17,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:17,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602037555] [2023-11-12 00:56:17,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602037555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:17,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645721011] [2023-11-12 00:56:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:17,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:17,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:17,406 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:17,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:56:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:17,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:56:17,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:56:17,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:56:17,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645721011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:17,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969706978] [2023-11-12 00:56:17,588 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-11-12 00:56:17,588 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:17,588 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:17,589 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:17,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:18,237 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1969706978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 4, 4] total 17 [2023-11-12 00:56:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109815987] [2023-11-12 00:56:18,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:18,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:56:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:56:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:56:18,481 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-11-12 00:56:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:18,679 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-11-12 00:56:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:56:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2023-11-12 00:56:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:18,680 INFO L225 Difference]: With dead ends: 39 [2023-11-12 00:56:18,680 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 00:56:18,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:56:18,681 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:18,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 00:56:18,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2023-11-12 00:56:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 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) [2023-11-12 00:56:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-11-12 00:56:18,691 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2023-11-12 00:56:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:18,692 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-11-12 00:56:18,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-11-12 00:56:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-11-12 00:56:18,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:56:18,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:18,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:18,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:18,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 00:56:18,899 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:18,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 202192473, now seen corresponding path program 1 times [2023-11-12 00:56:18,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:18,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210287141] [2023-11-12 00:56:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:18,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:18,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:18,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:18,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210287141] [2023-11-12 00:56:18,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210287141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:18,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:18,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971261532] [2023-11-12 00:56:18,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:18,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:18,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:18,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:18,931 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-12 00:56:18,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:18,953 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-11-12 00:56:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:18,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-12 00:56:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:18,955 INFO L225 Difference]: With dead ends: 32 [2023-11-12 00:56:18,955 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 00:56:18,955 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 [2023-11-12 00:56:18,956 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:18,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 00:56:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-11-12 00:56:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.3076923076923077) 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) [2023-11-12 00:56:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-12 00:56:18,965 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 11 [2023-11-12 00:56:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:18,965 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-12 00:56:18,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-12 00:56:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-12 00:56:18,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:56:18,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:18,966 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:18,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:56:18,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:18,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:18,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1952707128, now seen corresponding path program 1 times [2023-11-12 00:56:18,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:18,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377721905] [2023-11-12 00:56:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:18,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:56:19,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377721905] [2023-11-12 00:56:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377721905] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621919400] [2023-11-12 00:56:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:19,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:19,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:19,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:19,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:56:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:19,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:56:19,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:56:19,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:56:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621919400] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1000598234] [2023-11-12 00:56:19,202 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2023-11-12 00:56:19,202 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:19,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:19,202 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:19,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:20,002 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:20,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1000598234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:20,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:20,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 4, 4] total 18 [2023-11-12 00:56:20,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763173760] [2023-11-12 00:56:20,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:56:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:56:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:56:20,300 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2023-11-12 00:56:20,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:20,535 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-12 00:56:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 00:56:20,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 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 14 [2023-11-12 00:56:20,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:20,536 INFO L225 Difference]: With dead ends: 29 [2023-11-12 00:56:20,536 INFO L226 Difference]: Without dead ends: 17 [2023-11-12 00:56:20,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-11-12 00:56:20,538 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:20,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:20,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-12 00:56:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-12 00:56:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 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) [2023-11-12 00:56:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-12 00:56:20,546 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2023-11-12 00:56:20,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:20,546 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-12 00:56:20,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2023-11-12 00:56:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-12 00:56:20,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:56:20,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:20,548 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2023-11-12 00:56:20,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:20,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:20,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:56:20,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:20,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2071611681, now seen corresponding path program 2 times [2023-11-12 00:56:20,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:20,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517369784] [2023-11-12 00:56:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:20,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:20,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:20,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517369784] [2023-11-12 00:56:20,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517369784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:20,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806902083] [2023-11-12 00:56:20,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:56:20,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:20,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:20,951 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:20,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:56:21,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-12 00:56:21,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:56:21,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:56:21,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 00:56:21,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 00:56:21,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806902083] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:21,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [411622064] [2023-11-12 00:56:21,151 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-11-12 00:56:21,152 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:21,152 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:21,152 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:21,152 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:21,733 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:22,386 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1099#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |ULTIMATE.start_init_~size#1| 1000000) (<= 2 |ULTIMATE.start_init_#in~a#1.base|) (<= 2147483647 |ULTIMATE.start_init_#t~post1#1|) (= |ULTIMATE.start_main_~flag~0#1| 0) (= 1000000 |ULTIMATE.start_init_#in~size#1|) (<= 2 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_init_~i~0#1|) (<= 2 |ULTIMATE.start_init_~a#1.base|))' at error location [2023-11-12 00:56:22,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:56:22,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:22,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2023-11-12 00:56:22,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642719293] [2023-11-12 00:56:22,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:56:22,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 00:56:22,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:22,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 00:56:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-12 00:56:22,388 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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) [2023-11-12 00:56:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:22,625 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-11-12 00:56:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:56:22,625 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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 16 [2023-11-12 00:56:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:22,626 INFO L225 Difference]: With dead ends: 20 [2023-11-12 00:56:22,626 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:56:22,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-11-12 00:56:22,627 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:22,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:56:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:56:22,628 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) [2023-11-12 00:56:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:56:22,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-12 00:56:22,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:22,629 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:56:22,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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) [2023-11-12 00:56:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:56:22,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:56:22,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-12 00:56:22,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-12 00:56:22,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-12 00:56:22,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-12 00:56:22,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-12 00:56:22,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-12 00:56:22,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:22,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 00:56:22,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:56:23,289 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-12 00:56:23,289 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-11-12 00:56:23,290 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-12 00:56:23,290 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 41) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= 2 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0))) (and (or (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|)) (= |ULTIMATE.start_main_~i~1#1| 0)) .cse0 (or (exists ((|v_ULTIMATE.start_init_#in~size#1_8| Int) (|v_ULTIMATE.start_init_#in~a#1.offset_8| Int) (|v_ULTIMATE.start_init_~i~0#1_28| Int) (|v_ULTIMATE.start_init_~a#1.base_12| Int) (|v_ULTIMATE.start_init_#in~a#1.base_8| Int) (|v_ULTIMATE.start_init_~a#1.offset_12| Int) (|v_ULTIMATE.start_init_~size#1_15| Int)) (and (<= 0 (+ |v_ULTIMATE.start_init_~i~0#1_28| 2147483648)) (exists ((|v_ULTIMATE.start_init_~i~0#1_27| Int)) (and .cse0 (= |v_ULTIMATE.start_init_~size#1_15| 1000000) (<= 0 |v_ULTIMATE.start_init_~i~0#1_27|) (= |v_ULTIMATE.start_init_#in~a#1.offset_8| 0) (= 1000000 |v_ULTIMATE.start_init_#in~size#1_8|) (<= 2 |v_ULTIMATE.start_init_#in~a#1.base_8|) (= |ULTIMATE.start_main_~flag~0#1| 0) .cse1 .cse2 (<= 2 |v_ULTIMATE.start_init_~a#1.base_12|) (= |v_ULTIMATE.start_init_~a#1.offset_12| 0))) (<= |v_ULTIMATE.start_init_~i~0#1_28| 2147483647) (<= |v_ULTIMATE.start_init_~size#1_15| |v_ULTIMATE.start_init_~i~0#1_28|))) (< 0 |ULTIMATE.start_main_~i~1#1|)) .cse1 .cse2)) [2023-11-12 00:56:23,290 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-12 00:56:23,290 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_init_#in~a#1.offset| 0)) (.cse2 (= |ULTIMATE.start_init_~size#1| 1000000)) (.cse3 (= |ULTIMATE.start_main_~flag~0#1| 0)) (.cse4 (= 1000000 |ULTIMATE.start_init_#in~size#1|)) (.cse5 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse6 (= |ULTIMATE.start_init_~a#1.offset| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 |ULTIMATE.start_init_#in~a#1.base|) (<= |ULTIMATE.start_init_~i~0#1| 2147483647) .cse3 .cse4 (<= 2 |ULTIMATE.start_main_~#a~0#1.base|) .cse5 .cse6 (<= 1 |ULTIMATE.start_init_~i~0#1|) (<= 2 |ULTIMATE.start_init_~a#1.base|)) (let ((.cse7 (select |#memory_int| 1))) (and (exists ((|v_#valid_36| (Array Int Int))) (and (= (select |v_#valid_36| 1) 1) (= (select |v_#valid_36| 2) 1) (= (select |v_#valid_36| 0) 0) (= (store |v_#valid_36| |ULTIMATE.start_main_~#a~0#1.base| 1) |#valid|) (= (select |v_#valid_36| |ULTIMATE.start_main_~#a~0#1.base|) 0))) .cse0 .cse1 (exists ((|v_#length_22| (Array Int Int))) (and (= (select |v_#length_22| 1) 2) (= 15 (select |v_#length_22| 2)) (= (store |v_#length_22| |ULTIMATE.start_main_~#a~0#1.base| 4000000) |#length|))) .cse2 (= |ULTIMATE.start_init_~i~0#1| 0) (= |ULTIMATE.start_init_#in~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_init_#in~a#1.base|) .cse3 .cse4 (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#a~0#1.base|) .cse5 .cse6 (= (select .cse7 0) 48) (= (select .cse7 1) 0))))) [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:56:23,291 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2023-11-12 00:56:23,292 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2023-11-12 00:56:23,292 INFO L895 garLoopResultBuilder]: At program point L42-5(lines 42 46) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= 2 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse2) (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2))) [2023-11-12 00:56:23,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-12 00:56:23,295 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,297 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:23,312 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,314 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,314 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,314 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated [2023-11-12 00:56:23,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated [2023-11-12 00:56:23,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:56:23,317 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:56:23,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,319 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,320 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,320 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,320 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:56:23,320 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:56:23,323 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated [2023-11-12 00:56:23,324 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated [2023-11-12 00:56:23,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:23 BoogieIcfgContainer [2023-11-12 00:56:23,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:23,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:23,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:23,325 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:23,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:07" (3/4) ... [2023-11-12 00:56:23,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:56:23,335 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-12 00:56:23,336 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 00:56:23,336 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:56:23,336 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:56:23,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((size == 1000000) && (i <= 2147483647)) && (1000000 == \old(size))) && (1 <= i)) || (((size == 1000000) && (i == 0)) && (1000000 == \old(size)))) [2023-11-12 00:56:23,376 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((size == 1000000) && (i <= 2147483647)) && (1000000 == \old(size))) && (1 <= i)) || (((size == 1000000) && (i == 0)) && (1000000 == \old(size)))) [2023-11-12 00:56:23,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:56:23,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:56:23,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:23,426 INFO L158 Benchmark]: Toolchain (without parser) took 17333.40ms. Allocated memory was 176.2MB in the beginning and 448.8MB in the end (delta: 272.6MB). Free memory was 132.6MB in the beginning and 388.3MB in the end (delta: -255.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,426 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:23,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.56ms. Allocated memory is still 176.2MB. Free memory was 132.1MB in the beginning and 121.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 176.2MB. Free memory was 121.6MB in the beginning and 120.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,427 INFO L158 Benchmark]: Boogie Preprocessor took 26.95ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 118.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,428 INFO L158 Benchmark]: RCFGBuilder took 545.57ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 101.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,428 INFO L158 Benchmark]: TraceAbstraction took 16293.87ms. Allocated memory was 176.2MB in the beginning and 448.8MB in the end (delta: 272.6MB). Free memory was 101.2MB in the beginning and 393.6MB in the end (delta: -292.4MB). Peak memory consumption was 225.5MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,428 INFO L158 Benchmark]: Witness Printer took 100.33ms. Allocated memory is still 448.8MB. Free memory was 393.6MB in the beginning and 388.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.56ms. Allocated memory is still 176.2MB. Free memory was 132.1MB in the beginning and 121.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 176.2MB. Free memory was 121.6MB in the beginning and 120.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.95ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 118.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.57ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 101.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16293.87ms. Allocated memory was 176.2MB in the beginning and 448.8MB in the end (delta: 272.6MB). Free memory was 101.2MB in the beginning and 393.6MB in the end (delta: -292.4MB). Peak memory consumption was 225.5MB. Max. memory is 16.1GB. * Witness Printer took 100.33ms. Allocated memory is still 448.8MB. Free memory was 393.6MB in the beginning and 388.3MB 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: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~flag~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~flag~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~flag~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~flag~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated * 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 16.1s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 440 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 63 mSDtfsCounter, 440 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 113 SyntacticMatches, 11 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=7, InterpolantAutomatonStates: 69, 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, 10 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 237 HoareAnnotationTreeSize, 3 FomulaSimplifications, 899 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 267 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 14 NumberOfNonLiveVariables, 557 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 69/135 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: OVERALL_TIME: 3.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 33, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 91, TOOLS_POST_TIME: 3.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 91, TOOLS_QUANTIFIERELIM_TIME: 3.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 168, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 19, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 33, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 3.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 19, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 601, DAG_COMPRESSION_RETAINED_NODES: 110, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant [2023-11-12 00:56:23,440 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,441 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,441 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,441 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,441 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,441 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated [2023-11-12 00:56:23,442 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,442 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated [2023-11-12 00:56:23,442 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,442 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,442 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,443 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,443 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,443 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:56:23,443 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:56:23,444 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,444 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,444 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_36 : [int]int :: (((v_#valid_36[1] == 1 && v_#valid_36[2] == 1) && v_#valid_36[0] == 0) && v_#valid_36[~#a~0!base := 1] == #valid) && v_#valid_36[~#a~0!base] == 0) could not be translated [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_22 : [int]int :: (v_#length_22[1] == 2 && 15 == v_#length_22[2]) && v_#length_22[~#a~0!base := 4000000] == #length) could not be translated [2023-11-12 00:56:23,445 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~a!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~flag~0 [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~a!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:56:23,446 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated Derived loop invariant: (((((size == 1000000) && (i <= 2147483647)) && (1000000 == \old(size))) && (1 <= i)) || (((size == 1000000) && (i == 0)) && (1000000 == \old(size)))) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (1 <= i)) || (i == 0)) - InvariantResult [Line: 35]: Loop Invariant [2023-11-12 00:56:23,448 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated [2023-11-12 00:56:23,448 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#in~size#1_8 : int, v_ULTIMATE.start_init_#in~a#1.offset_8 : int, v_ULTIMATE.start_init_~i~0#1_28 : int, v_ULTIMATE.start_init_~a#1.base_12 : int, v_ULTIMATE.start_init_#in~a#1.base_8 : int, v_ULTIMATE.start_init_~a#1.offset_12 : int, v_ULTIMATE.start_init_~size#1_15 : int :: ((0 <= v_ULTIMATE.start_init_~i~0#1_28 + 2147483648 && (exists v_ULTIMATE.start_init_~i~0#1_27 : int :: (((((((((1 <= #StackHeapBarrier && v_ULTIMATE.start_init_~size#1_15 == 1000000) && 0 <= v_ULTIMATE.start_init_~i~0#1_27) && v_ULTIMATE.start_init_#in~a#1.offset_8 == 0) && 1000000 == v_ULTIMATE.start_init_#in~size#1_8) && 2 <= v_ULTIMATE.start_init_#in~a#1.base_8) && ~flag~0 == 0) && 2 <= ~#a~0!base) && ~#a~0!offset == 0) && 2 <= v_ULTIMATE.start_init_~a#1.base_12) && v_ULTIMATE.start_init_~a#1.offset_12 == 0)) && v_ULTIMATE.start_init_~i~0#1_28 <= 2147483647) && v_ULTIMATE.start_init_~size#1_15 <= v_ULTIMATE.start_init_~i~0#1_28) could not be translated Derived loop invariant: (((i <= 2147483647) && (1 <= i)) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:56:23,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6018f34b-b0d7-42ef-a833-74729ca59bc0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE