./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c --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_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/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_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/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_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/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 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:32,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:33,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:10:33,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:33,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:33,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:33,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:33,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:33,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:33,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:33,070 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:33,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:33,072 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:33,073 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:33,074 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:33,074 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:33,075 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:33,075 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:33,076 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:33,076 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:33,077 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:33,078 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:33,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:33,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:33,080 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:33,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:33,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:33,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:33,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:33,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:33,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:33,084 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:10:33,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:33,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:33,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:33,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:33,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:33,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:33,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:33,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:33,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:33,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:33,088 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:33,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:33,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:33,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:33,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:33,089 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_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 [2023-11-12 00:10:33,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:33,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:33,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:33,463 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:33,463 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:33,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c [2023-11-12 00:10:36,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:36,879 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:36,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c [2023-11-12 00:10:36,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/data/0a77333cc/31ed3f37cddd4b4184b782d7f7efd524/FLAG6745b3be9 [2023-11-12 00:10:36,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/data/0a77333cc/31ed3f37cddd4b4184b782d7f7efd524 [2023-11-12 00:10:36,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:36,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:36,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:36,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:36,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:36,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:36" (1/1) ... [2023-11-12 00:10:36,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a36cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:36, skipping insertion in model container [2023-11-12 00:10:36,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:36" (1/1) ... [2023-11-12 00:10:36,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:37,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:37,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:37,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:37,142 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:37,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37 WrapperNode [2023-11-12 00:10:37,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:37,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:37,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:37,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:37,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,179 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-12 00:10:37,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:37,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:37,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:37,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:37,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:37,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:37,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:37,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:37,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:37,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:37,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:37,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:37,395 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:37,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:37,637 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:37,703 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:37,713 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:10:37,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:37 BoogieIcfgContainer [2023-11-12 00:10:37,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:37,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:37,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:37,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:37,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:36" (1/3) ... [2023-11-12 00:10:37,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397ec748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:37, skipping insertion in model container [2023-11-12 00:10:37,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (2/3) ... [2023-11-12 00:10:37,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397ec748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:37, skipping insertion in model container [2023-11-12 00:10:37,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:37" (3/3) ... [2023-11-12 00:10:37,731 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6.c [2023-11-12 00:10:37,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:37,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 00:10:37,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:37,827 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;@191519e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:37,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-12 00:10:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) 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 00:10:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:10:37,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:37,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:10:37,840 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 00:10:37,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 3080367, now seen corresponding path program 1 times [2023-11-12 00:10:37,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:37,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164411691] [2023-11-12 00:10:37,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:37,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,237 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 00:10:38,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:38,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164411691] [2023-11-12 00:10:38,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164411691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:38,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:38,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:38,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992363209] [2023-11-12 00:10:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:38,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:38,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:38,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:10:38,294 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 00:10:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:38,410 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-11-12 00:10:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:38,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 00:10:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:38,421 INFO L225 Difference]: With dead ends: 24 [2023-11-12 00:10:38,421 INFO L226 Difference]: Without dead ends: 20 [2023-11-12 00:10:38,424 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 00:10:38,430 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:38,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-12 00:10:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-12 00:10:38,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 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 00:10:38,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-12 00:10:38,468 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2023-11-12 00:10:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:38,468 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-12 00:10:38,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 00:10:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-12 00:10:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:10:38,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:38,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:10:38,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:38,472 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 00:10:38,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash 3080503, now seen corresponding path program 1 times [2023-11-12 00:10:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:38,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598563670] [2023-11-12 00:10:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,635 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 00:10:38,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:38,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598563670] [2023-11-12 00:10:38,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598563670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:38,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:38,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:38,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910509717] [2023-11-12 00:10:38,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:38,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:38,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:38,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:38,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:38,640 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 00:10:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:38,660 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-11-12 00:10:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:38,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 00:10:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:38,662 INFO L225 Difference]: With dead ends: 39 [2023-11-12 00:10:38,662 INFO L226 Difference]: Without dead ends: 20 [2023-11-12 00:10:38,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 00:10:38,665 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:38,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-12 00:10:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-12 00:10:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 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 00:10:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-12 00:10:38,671 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2023-11-12 00:10:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:38,672 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-12 00:10:38,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 00:10:38,672 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-12 00:10:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:10:38,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:38,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:10:38,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:10:38,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:38,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash 97524663, now seen corresponding path program 1 times [2023-11-12 00:10:38,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:38,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978824589] [2023-11-12 00:10:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,731 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 00:10:38,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978824589] [2023-11-12 00:10:38,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978824589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:38,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:38,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141108691] [2023-11-12 00:10:38,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:38,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:38,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:10:38,735 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:38,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:38,791 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2023-11-12 00:10:38,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:38,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 00:10:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:38,792 INFO L225 Difference]: With dead ends: 43 [2023-11-12 00:10:38,793 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 00:10:38,793 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 00:10:38,795 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:38,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 00:10:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2023-11-12 00:10:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 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 00:10:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-12 00:10:38,803 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 5 [2023-11-12 00:10:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:38,803 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-12 00:10:38,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-12 00:10:38,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:10:38,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:38,805 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-12 00:10:38,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:10:38,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:38,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1572955220, now seen corresponding path program 1 times [2023-11-12 00:10:38,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:38,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798828981] [2023-11-12 00:10:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,919 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 00:10:38,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:38,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798828981] [2023-11-12 00:10:38,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798828981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:38,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111642530] [2023-11-12 00:10:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:38,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:38,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:38,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:38,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:10:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:10:39,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:39,056 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 00:10:39,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111642530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:10:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 00:10:39,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021608010] [2023-11-12 00:10:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:10:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:10:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:10:39,060 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 00:10:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:39,133 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2023-11-12 00:10:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:10:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 00:10:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:39,135 INFO L225 Difference]: With dead ends: 25 [2023-11-12 00:10:39,135 INFO L226 Difference]: Without dead ends: 24 [2023-11-12 00:10:39,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:10:39,137 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:39,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-12 00:10:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-12 00:10:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.368421052631579) internal successors, (26), 23 states have internal predecessors, (26), 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 00:10:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-11-12 00:10:39,143 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 7 [2023-11-12 00:10:39,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:39,143 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-11-12 00:10:39,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 00:10:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-12 00:10:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:10:39,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:39,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:39,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:39,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:39,351 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 00:10:39,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1572955356, now seen corresponding path program 1 times [2023-11-12 00:10:39,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:39,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841407026] [2023-11-12 00:10:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:39,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:39,469 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 00:10:39,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:39,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841407026] [2023-11-12 00:10:39,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841407026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:39,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:39,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171154635] [2023-11-12 00:10:39,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:39,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:39,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:39,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:10:39,475 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 00:10:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:39,523 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2023-11-12 00:10:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 00:10:39,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:39,524 INFO L225 Difference]: With dead ends: 35 [2023-11-12 00:10:39,525 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 00:10:39,525 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 00:10:39,526 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:39,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 00:10:39,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-11-12 00:10:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 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 00:10:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-12 00:10:39,533 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 7 [2023-11-12 00:10:39,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:39,534 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-12 00:10:39,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 00:10:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-12 00:10:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:10:39,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:39,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-12 00:10:39,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:10:39,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:39,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1516971618, now seen corresponding path program 1 times [2023-11-12 00:10:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503081949] [2023-11-12 00:10:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:39,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:39,640 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 00:10:39,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:39,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503081949] [2023-11-12 00:10:39,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503081949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:39,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740009973] [2023-11-12 00:10:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:39,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:39,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:39,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:39,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:10:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:39,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:10:39,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:39,729 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 00:10:39,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:39,779 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 00:10:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740009973] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1383006885] [2023-11-12 00:10:39,800 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2023-11-12 00:10:39,800 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:39,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:39,809 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:39,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:40,654 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:41,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1383006885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:41,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:41,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2023-11-12 00:10:41,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693800880] [2023-11-12 00:10:41,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:41,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:10:41,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:41,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:10:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:10:41,070 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 00:10:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:41,338 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-11-12 00:10:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:10:41,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 8 [2023-11-12 00:10:41,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:41,341 INFO L225 Difference]: With dead ends: 33 [2023-11-12 00:10:41,341 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 00:10:41,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:10:41,345 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:41,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 00:10:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-11-12 00:10:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-12 00:10:41,362 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 8 [2023-11-12 00:10:41,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:41,363 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-12 00:10:41,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 00:10:41,365 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-12 00:10:41,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:10:41,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:41,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-12 00:10:41,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 00:10:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 00:10:41,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:41,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash -7750820, now seen corresponding path program 1 times [2023-11-12 00:10:41,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:41,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879468575] [2023-11-12 00:10:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:41,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:10:41,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:41,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879468575] [2023-11-12 00:10:41,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879468575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:41,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859439633] [2023-11-12 00:10:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:41,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:41,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:41,758 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:41,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:10:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:41,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:10:41,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:10:41,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:10:41,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859439633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:41,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040221090] [2023-11-12 00:10:41,944 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-12 00:10:41,944 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:41,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:41,945 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:41,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:43,572 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:43,872 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '652#(and (<= |ULTIMATE.start_foo_#res#1| 2147483647) (<= (+ 2147483650 |ULTIMATE.start_main_#t~post2#1|) 0) (exists ((|v_ULTIMATE.start_foo_~size#1_23| Int) (|v_ULTIMATE.start_foo_#in~size#1_17| Int)) (and (= |v_ULTIMATE.start_foo_~size#1_23| 32) (<= 32 |ULTIMATE.start_foo_#res#1|) (= 32 |v_ULTIMATE.start_foo_#in~size#1_17|))) (<= 0 (+ |ULTIMATE.start_foo_#res#1| 2147483648)) (exists ((|v_#memory_int_24| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_24| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_24| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)) |ULTIMATE.start_foo_#res#1|)))) (= |ULTIMATE.start_main_#t~post2#1| |ULTIMATE.start_main_~i~1#1|))' at error location [2023-11-12 00:10:43,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:10:43,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:43,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 00:10:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776602507] [2023-11-12 00:10:43,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:10:43,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 00:10:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 00:10:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-12 00:10:43,874 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 00:10:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:43,966 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2023-11-12 00:10:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:10:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 00:10:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:43,969 INFO L225 Difference]: With dead ends: 64 [2023-11-12 00:10:43,969 INFO L226 Difference]: Without dead ends: 40 [2023-11-12 00:10:43,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:10:43,971 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:43,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-12 00:10:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-12 00:10:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2023-11-12 00:10:43,980 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 14 [2023-11-12 00:10:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:43,980 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2023-11-12 00:10:43,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 00:10:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2023-11-12 00:10:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:10:43,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:43,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:43,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:44,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:44,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:44,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:44,189 INFO L85 PathProgramCache]: Analyzing trace with hash -971177926, now seen corresponding path program 1 times [2023-11-12 00:10:44,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:44,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012621201] [2023-11-12 00:10:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:44,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:10:44,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:44,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012621201] [2023-11-12 00:10:44,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012621201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:44,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179024430] [2023-11-12 00:10:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:44,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:44,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:44,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:44,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:10:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:44,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 00:10:44,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:10:44,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:10:44,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179024430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:44,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [622957895] [2023-11-12 00:10:44,777 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:10:44,778 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:44,778 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:44,778 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:44,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:46,270 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [622957895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:46,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:46,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9, 9] total 30 [2023-11-12 00:10:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346812084] [2023-11-12 00:10:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:46,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:10:46,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:10:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2023-11-12 00:10:46,702 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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 00:10:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:46,959 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2023-11-12 00:10:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:10:46,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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 22 [2023-11-12 00:10:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:46,961 INFO L225 Difference]: With dead ends: 40 [2023-11-12 00:10:46,961 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 00:10:46,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2023-11-12 00:10:46,963 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:46,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 00:10:46,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-12 00:10:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 36 states have internal predecessors, (40), 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 00:10:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-11-12 00:10:46,971 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2023-11-12 00:10:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:46,972 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-11-12 00:10:46,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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 00:10:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-11-12 00:10:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:10:46,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:46,973 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:46,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-12 00:10:47,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 00:10:47,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:47,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -41744543, now seen corresponding path program 1 times [2023-11-12 00:10:47,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:47,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451077689] [2023-11-12 00:10:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 00:10:47,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:47,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451077689] [2023-11-12 00:10:47,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451077689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:47,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401152759] [2023-11-12 00:10:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:47,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:47,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:47,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:10:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:47,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 00:10:47,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:10:47,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:10:47,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401152759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:47,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048001583] [2023-11-12 00:10:47,586 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:10:47,586 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:47,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:47,587 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:47,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:48,577 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:49,175 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1209#(and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31) (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)) 32) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#b~0#1.base|) (<= 2 |ULTIMATE.start_main_~#mask~0#1.base|) (= |ULTIMATE.start_main_#t~post4#1| |ULTIMATE.start_main_~i~1#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-11-12 00:10:49,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:10:49,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:49,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2023-11-12 00:10:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902871829] [2023-11-12 00:10:49,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:10:49,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-12 00:10:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-12 00:10:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2023-11-12 00:10:49,178 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 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 00:10:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:49,634 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2023-11-12 00:10:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-12 00:10:49,635 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 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 23 [2023-11-12 00:10:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:49,636 INFO L225 Difference]: With dead ends: 90 [2023-11-12 00:10:49,636 INFO L226 Difference]: Without dead ends: 65 [2023-11-12 00:10:49,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=415, Invalid=1841, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 00:10:49,638 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 100 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:49,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 36 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-12 00:10:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-12 00:10:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.0793650793650793) internal successors, (68), 64 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2023-11-12 00:10:49,651 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 23 [2023-11-12 00:10:49,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:49,651 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2023-11-12 00:10:49,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 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 00:10:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2023-11-12 00:10:49,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 00:10:49,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:49,653 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:49,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:49,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-12 00:10:49,859 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:49,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:49,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1611195742, now seen corresponding path program 2 times [2023-11-12 00:10:49,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:49,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736675634] [2023-11-12 00:10:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:49,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:10:50,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:50,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736675634] [2023-11-12 00:10:50,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736675634] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:50,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667212292] [2023-11-12 00:10:50,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:10:50,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:50,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:50,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:10:50,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 00:10:50,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:10:50,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:10:50,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-12 00:10:50,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-12 00:10:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667212292] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401839523] [2023-11-12 00:10:50,599 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:10:50,599 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:50,599 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:50,600 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:50,600 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:51,781 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:52,587 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1713#(and (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31) (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start_main_#t~post4#1| |ULTIMATE.start_main_~i~1#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-11-12 00:10:52,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:10:52,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:52,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 4] total 23 [2023-11-12 00:10:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119404171] [2023-11-12 00:10:52,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:10:52,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-12 00:10:52,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:52,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-12 00:10:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2023-11-12 00:10:52,590 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 00:10:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:53,805 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2023-11-12 00:10:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-12 00:10:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 39 [2023-11-12 00:10:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:53,807 INFO L225 Difference]: With dead ends: 148 [2023-11-12 00:10:53,807 INFO L226 Difference]: Without dead ends: 107 [2023-11-12 00:10:53,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 93 SyntacticMatches, 10 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1777 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1111, Invalid=4895, Unknown=0, NotChecked=0, Total=6006 [2023-11-12 00:10:53,811 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 210 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:53,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 34 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:53,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-12 00:10:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2023-11-12 00:10:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 99 states have internal predecessors, (105), 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 00:10:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2023-11-12 00:10:53,827 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 39 [2023-11-12 00:10:53,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:53,828 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2023-11-12 00:10:53,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 00:10:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2023-11-12 00:10:53,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:10:53,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:53,830 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 1, 1, 1] [2023-11-12 00:10:53,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:54,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:54,036 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:54,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:54,036 INFO L85 PathProgramCache]: Analyzing trace with hash 612922096, now seen corresponding path program 1 times [2023-11-12 00:10:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:54,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449463129] [2023-11-12 00:10:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-12 00:10:54,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449463129] [2023-11-12 00:10:54,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449463129] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928101003] [2023-11-12 00:10:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:54,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:54,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:54,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:54,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:10:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:54,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 00:10:54,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 210 proven. 92 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-12 00:10:54,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 210 proven. 92 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-12 00:10:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928101003] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [353546200] [2023-11-12 00:10:55,080 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-12 00:10:55,080 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:55,080 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:55,080 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:55,081 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:10:56,034 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:10:57,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2519#(and (<= 2147483647 |ULTIMATE.start_main_#t~post2#1|) (exists ((|v_#memory_int_46| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_46| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_46| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)) |ULTIMATE.start_foo_#res#1|)))) (<= |ULTIMATE.start_foo_#res#1| 2147483647) (exists ((|v_ULTIMATE.start_foo_#in~size#1_44| Int) (|v_ULTIMATE.start_foo_~size#1_48| Int)) (and (= 32 |v_ULTIMATE.start_foo_#in~size#1_44|) (<= 32 |ULTIMATE.start_foo_#res#1|) (= |v_ULTIMATE.start_foo_~size#1_48| 32))) (<= 0 (+ |ULTIMATE.start_foo_#res#1| 2147483648)) (= |ULTIMATE.start_main_#t~post2#1| |ULTIMATE.start_main_~i~1#1|))' at error location [2023-11-12 00:10:57,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:10:57,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:10:57,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 40 [2023-11-12 00:10:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972236912] [2023-11-12 00:10:57,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:10:57,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-12 00:10:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:57,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-12 00:10:57,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1613, Unknown=0, NotChecked=0, Total=1980 [2023-11-12 00:10:57,015 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 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 00:10:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:59,688 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2023-11-12 00:10:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-11-12 00:10:59,689 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 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 57 [2023-11-12 00:10:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:59,690 INFO L225 Difference]: With dead ends: 254 [2023-11-12 00:10:59,690 INFO L226 Difference]: Without dead ends: 181 [2023-11-12 00:10:59,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 114 SyntacticMatches, 16 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5906 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3505, Invalid=13007, Unknown=0, NotChecked=0, Total=16512 [2023-11-12 00:10:59,697 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 264 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:59,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 28 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-12 00:10:59,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-11-12 00:10:59,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 179 states have (on average 1.0335195530726258) internal successors, (185), 180 states have internal predecessors, (185), 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 00:10:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2023-11-12 00:10:59,726 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 57 [2023-11-12 00:10:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:59,727 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2023-11-12 00:10:59,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 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 00:10:59,727 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2023-11-12 00:10:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-12 00:10:59,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:59,736 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 3, 3, 3, 2, 1, 1] [2023-11-12 00:10:59,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:59,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:59,942 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:10:59,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1234332186, now seen corresponding path program 2 times [2023-11-12 00:10:59,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:59,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659632325] [2023-11-12 00:10:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:59,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 1806 proven. 425 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2023-11-12 00:11:02,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:02,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659632325] [2023-11-12 00:11:02,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659632325] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:02,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705171422] [2023-11-12 00:11:02,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:11:02,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:02,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:02,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 00:11:02,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 00:11:02,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:11:02,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:11:02,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 1810 proven. 0 refuted. 0 times theorem prover too weak. 2180 trivial. 0 not checked. [2023-11-12 00:11:02,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:02,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705171422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:02,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:11:02,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [37] total 40 [2023-11-12 00:11:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658309214] [2023-11-12 00:11:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:02,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:11:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:11:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2023-11-12 00:11:02,576 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 00:11:02,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:02,648 INFO L93 Difference]: Finished difference Result 181 states and 185 transitions. [2023-11-12 00:11:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:11:02,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 166 [2023-11-12 00:11:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:02,651 INFO L225 Difference]: With dead ends: 181 [2023-11-12 00:11:02,651 INFO L226 Difference]: Without dead ends: 180 [2023-11-12 00:11:02,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=372, Invalid=1268, Unknown=0, NotChecked=0, Total=1640 [2023-11-12 00:11:02,653 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:02,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-12 00:11:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2023-11-12 00:11:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.0279329608938548) internal successors, (184), 179 states have internal predecessors, (184), 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 00:11:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 184 transitions. [2023-11-12 00:11:02,681 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 184 transitions. Word has length 166 [2023-11-12 00:11:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:02,682 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 184 transitions. [2023-11-12 00:11:02,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 00:11:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 184 transitions. [2023-11-12 00:11:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-12 00:11:02,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:02,686 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2023-11-12 00:11:02,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:02,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 00:11:02,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:11:02,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1978900478, now seen corresponding path program 3 times [2023-11-12 00:11:02,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:02,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697103651] [2023-11-12 00:11:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2023-11-12 00:11:04,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:04,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697103651] [2023-11-12 00:11:04,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697103651] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:04,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387649989] [2023-11-12 00:11:04,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 00:11:04,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:04,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:04,804 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:04,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 00:11:05,360 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 00:11:05,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:11:05,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-12 00:11:05,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2023-11-12 00:11:06,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2023-11-12 00:11:09,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387649989] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:09,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862521993] [2023-11-12 00:11:09,216 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:11:09,216 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:09,217 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:09,217 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:09,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:10,256 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:15,616 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5468#(and (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31) (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start_main_#t~post4#1| |ULTIMATE.start_main_~i~1#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-11-12 00:11:15,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:15,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:15,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 107 [2023-11-12 00:11:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493450329] [2023-11-12 00:11:15,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:15,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-11-12 00:11:15,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-11-12 00:11:15,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2633, Invalid=10477, Unknown=0, NotChecked=0, Total=13110 [2023-11-12 00:11:15,624 INFO L87 Difference]: Start difference. First operand 180 states and 184 transitions. Second operand has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 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 00:11:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:17,300 INFO L93 Difference]: Finished difference Result 441 states and 493 transitions. [2023-11-12 00:11:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-12 00:11:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 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 179 [2023-11-12 00:11:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:17,309 INFO L225 Difference]: With dead ends: 441 [2023-11-12 00:11:17,309 INFO L226 Difference]: Without dead ends: 315 [2023-11-12 00:11:17,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 405 SyntacticMatches, 54 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12494 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=4621, Invalid=16549, Unknown=0, NotChecked=0, Total=21170 [2023-11-12 00:11:17,321 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 276 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:17,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 44 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:11:17,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-12 00:11:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2023-11-12 00:11:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.015923566878981) internal successors, (319), 314 states have internal predecessors, (319), 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 00:11:17,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 319 transitions. [2023-11-12 00:11:17,390 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 319 transitions. Word has length 179 [2023-11-12 00:11:17,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:17,390 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 319 transitions. [2023-11-12 00:11:17,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 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 00:11:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 319 transitions. [2023-11-12 00:11:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-11-12 00:11:17,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:17,405 INFO L195 NwaCegarLoop]: trace histogram [96, 96, 96, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2023-11-12 00:11:17,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:17,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:17,612 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:11:17,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 287699663, now seen corresponding path program 4 times [2023-11-12 00:11:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:17,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451943371] [2023-11-12 00:11:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2023-11-12 00:11:18,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451943371] [2023-11-12 00:11:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451943371] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123349376] [2023-11-12 00:11:18,284 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 00:11:18,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:18,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:18,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:18,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 00:11:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:18,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:11:18,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2023-11-12 00:11:18,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2023-11-12 00:11:18,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123349376] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:18,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1640655574] [2023-11-12 00:11:18,772 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:11:18,773 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:18,773 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:18,773 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:18,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:19,959 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:21,772 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8442#(and (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31) (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start_main_#t~post4#1| |ULTIMATE.start_main_~i~1#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-11-12 00:11:21,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:21,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-12 00:11:21,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841407916] [2023-11-12 00:11:21,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:21,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 00:11:21,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:21,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 00:11:21,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2023-11-12 00:11:21,776 INFO L87 Difference]: Start difference. First operand 315 states and 319 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 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 00:11:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:21,895 INFO L93 Difference]: Finished difference Result 320 states and 325 transitions. [2023-11-12 00:11:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 00:11:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 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 314 [2023-11-12 00:11:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:21,897 INFO L225 Difference]: With dead ends: 320 [2023-11-12 00:11:21,897 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:11:21,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 951 GetRequests, 826 SyntacticMatches, 99 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2030 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2023-11-12 00:11:21,899 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 46 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:21,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 14 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:11:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:11:21,900 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 00:11:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:11:21,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 314 [2023-11-12 00:11:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:21,900 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:11:21,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 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 00:11:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:11:21,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:11:21,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-12 00:11:21,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-12 00:11:21,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-12 00:11:21,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-12 00:11:21,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-12 00:11:21,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-12 00:11:21,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:22,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:11:24,629 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~1#1|)) (.cse2 (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) (.cse3 (= 32 |ULTIMATE.start_foo_~size#1|)) (.cse4 (= 32 |ULTIMATE.start_foo_#in~size#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_foo_~i~0#1| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_foo_~i~0#1|)))) [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 21 35) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-12 00:11:24,630 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~i~1#1| 2147483645)) [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-12 00:11:24,631 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-11-12 00:11:24,634 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:24,636 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:11:24,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:11:24 BoogieIcfgContainer [2023-11-12 00:11:24,659 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:11:24,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:11:24,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:11:24,660 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:11:24,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:37" (3/4) ... [2023-11-12 00:11:24,663 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:11:24,675 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-12 00:11:24,675 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-12 00:11:24,675 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:11:24,676 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:11:24,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (i == 0)) || (((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (1 <= i))) [2023-11-12 00:11:24,732 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (i == 0)) || (((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (1 <= i))) [2023-11-12 00:11:24,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:11:24,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:11:24,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:11:24,786 INFO L158 Benchmark]: Toolchain (without parser) took 47875.52ms. Allocated memory was 127.9MB in the beginning and 509.6MB in the end (delta: 381.7MB). Free memory was 84.7MB in the beginning and 275.8MB in the end (delta: -191.1MB). Peak memory consumption was 193.8MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,786 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 100.1MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:11:24,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.57ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 74.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.94ms. Allocated memory is still 127.9MB. Free memory was 74.4MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,788 INFO L158 Benchmark]: Boogie Preprocessor took 25.73ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,788 INFO L158 Benchmark]: RCFGBuilder took 508.98ms. Allocated memory is still 127.9MB. Free memory was 71.7MB in the beginning and 58.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,789 INFO L158 Benchmark]: TraceAbstraction took 46939.96ms. Allocated memory was 127.9MB in the beginning and 509.6MB in the end (delta: 381.7MB). Free memory was 58.1MB in the beginning and 281.0MB in the end (delta: -222.9MB). Peak memory consumption was 274.2MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,790 INFO L158 Benchmark]: Witness Printer took 125.36ms. Allocated memory is still 509.6MB. Free memory was 281.0MB in the beginning and 275.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:11:24,794 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 100.1MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.57ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 74.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.94ms. Allocated memory is still 127.9MB. Free memory was 74.4MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.73ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.98ms. Allocated memory is still 127.9MB. Free memory was 71.7MB in the beginning and 58.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 46939.96ms. Allocated memory was 127.9MB in the beginning and 509.6MB in the end (delta: 381.7MB). Free memory was 58.1MB in the beginning and 281.0MB in the end (delta: -222.9MB). Peak memory consumption was 274.2MB. Max. memory is 16.1GB. * Witness Printer took 125.36ms. Allocated memory is still 509.6MB. Free memory was 281.0MB in the beginning and 275.8MB 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.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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 46.8s, OverallIterations: 14, TraceHistogramMax: 96, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 963 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 963 mSDsluCounter, 409 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1075 IncrementalHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 103 mSDtfsCounter, 1075 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2465 GetRequests, 1732 SyntacticMatches, 195 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23819 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=13, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 111 NumberOfFragments, 57 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1691 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4390 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 1678 NumberOfCodeBlocks, 1499 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2302 ConstructedInterpolants, 0 QuantifiedInterpolants, 5066 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2722 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 32 InterpolantComputations, 6 PerfectInterpolantSequences, 61278/63560 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: 2.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 13, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 82, TOOLS_POST_TIME: 2.0s, 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: 82, TOOLS_QUANTIFIERELIM_TIME: 1.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 149, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 20, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 13, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 2.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 20, 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: 129, DAG_COMPRESSION_RETAINED_NODES: 65, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (i == 0)) || (((((((i % 4294967296) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (32 == \old(size))) && (1 <= i))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((0 <= i) && (i <= 2147483647)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((0 <= i) && (i <= 2147483645)) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:11:24,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40c3e13-88ff-4e91-b0e1-494a6024cfdf/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