./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/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_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/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_c67e751c-45b1-4e36-83a5-f4b7678c12da/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 b073cc2eb0b196ef0c05471292790dfe61756b839736ddb49ad92ee60513afd2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:04,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:04,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:56:04,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:04,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:04,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:04,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:04,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:04,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:04,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:04,938 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:04,939 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:04,940 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:04,941 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:04,942 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:04,942 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:04,943 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:04,943 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:04,944 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:04,944 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:04,945 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:04,945 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:04,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:04,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:04,948 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:56:04,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:04,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:56:04,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:04,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:04,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:04,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:04,952 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:56:04,953 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:56:04,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:56:04,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:04,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:04,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:04,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:04,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:04,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:04,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:04,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:04,956 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:04,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:04,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:04,957 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:04,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:04,958 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_c67e751c-45b1-4e36-83a5-f4b7678c12da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b073cc2eb0b196ef0c05471292790dfe61756b839736ddb49ad92ee60513afd2 [2023-11-12 00:56:05,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:05,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:05,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:05,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:05,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:05,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i [2023-11-12 00:56:08,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:08,770 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:08,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i [2023-11-12 00:56:08,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/data/493063e0e/4ae5e30d9b394019bb3636398d2b635e/FLAGb77593726 [2023-11-12 00:56:08,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/data/493063e0e/4ae5e30d9b394019bb3636398d2b635e [2023-11-12 00:56:08,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:08,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:08,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:08,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:08,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:08,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563767b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08, skipping insertion in model container [2023-11-12 00:56:08,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:08,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:09,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:09,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:09,033 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:09,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09 WrapperNode [2023-11-12 00:56:09,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:09,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:09,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:09,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:09,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,069 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-12 00:56:09,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:09,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:09,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:09,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:09,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:09,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:09,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:09,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:09,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (1/1) ... [2023-11-12 00:56:09,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:09,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:09,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:09,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:56:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:56:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:09,256 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:09,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:09,426 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:09,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:09,607 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:56:09,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:09 BoogieIcfgContainer [2023-11-12 00:56:09,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:09,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:09,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:09,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:09,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:08" (1/3) ... [2023-11-12 00:56:09,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6637fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:09, skipping insertion in model container [2023-11-12 00:56:09,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:09" (2/3) ... [2023-11-12 00:56:09,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6637fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:09, skipping insertion in model container [2023-11-12 00:56:09,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:09" (3/3) ... [2023-11-12 00:56:09,621 INFO L112 eAbstractionObserver]: Analyzing ICFG array_ptr_single_elem_init-2.i [2023-11-12 00:56:09,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:09,643 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 00:56:09,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:09,714 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;@659160aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:09,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 00:56:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:56:09,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:09,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:56:09,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:56:09,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:09,737 INFO L85 PathProgramCache]: Analyzing trace with hash 112437, now seen corresponding path program 1 times [2023-11-12 00:56:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:09,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336576419] [2023-11-12 00:56:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:09,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:10,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:10,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336576419] [2023-11-12 00:56:10,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336576419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:10,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:10,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:10,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550947531] [2023-11-12 00:56:10,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:10,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:10,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:10,106 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:10,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:10,186 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-12 00:56:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:10,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-12 00:56:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:10,196 INFO L225 Difference]: With dead ends: 28 [2023-11-12 00:56:10,197 INFO L226 Difference]: Without dead ends: 19 [2023-11-12 00:56:10,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:10,203 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:10,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-12 00:56:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2023-11-12 00:56:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-12 00:56:10,237 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 3 [2023-11-12 00:56:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:10,238 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-12 00:56:10,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-12 00:56:10,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:56:10,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:10,239 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 00:56:10,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:56:10,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:56:10,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:10,241 INFO L85 PathProgramCache]: Analyzing trace with hash -945291281, now seen corresponding path program 1 times [2023-11-12 00:56:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:10,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19603359] [2023-11-12 00:56:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:10,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:10,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19603359] [2023-11-12 00:56:10,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19603359] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:10,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601726031] [2023-11-12 00:56:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:10,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:10,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:10,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:10,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:56:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:10,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:56:10,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:10,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:10,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601726031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:10,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:56:10,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-11-12 00:56:10,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302659160] [2023-11-12 00:56:10,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:10,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:10,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:10,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:10,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:56:10,766 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:10,819 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-12 00:56:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:10,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-12 00:56:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:10,820 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:56:10,820 INFO L226 Difference]: Without dead ends: 18 [2023-11-12 00:56:10,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:56:10,823 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:10,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-12 00:56:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2023-11-12 00:56:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 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 00:56:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-12 00:56:10,828 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2023-11-12 00:56:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:10,829 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-12 00:56:10,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-12 00:56:10,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:56:10,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:10,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:10,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:56:11,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 00:56:11,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:56:11,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash 760756156, now seen corresponding path program 1 times [2023-11-12 00:56:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:11,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069094387] [2023-11-12 00:56:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:11,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069094387] [2023-11-12 00:56:11,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069094387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:11,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242752034] [2023-11-12 00:56:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:11,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:11,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:11,206 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:11,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:56:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:56:11,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:11,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:11,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242752034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:11,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2055465359] [2023-11-12 00:56:11,421 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2023-11-12 00:56:11,422 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:11,427 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:11,434 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:11,435 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:12,044 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2055465359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:12,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:12,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 13 [2023-11-12 00:56:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554892545] [2023-11-12 00:56:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:12,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:56:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:56:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=125, Unknown=4, NotChecked=0, Total=182 [2023-11-12 00:56:12,355 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:12,440 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-11-12 00:56:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:56:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:12,443 INFO L225 Difference]: With dead ends: 23 [2023-11-12 00:56:12,443 INFO L226 Difference]: Without dead ends: 20 [2023-11-12 00:56:12,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=125, Unknown=4, NotChecked=0, Total=182 [2023-11-12 00:56:12,447 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:12,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-12 00:56:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2023-11-12 00:56:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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 00:56:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-12 00:56:12,456 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2023-11-12 00:56:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:12,457 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-12 00:56:12,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-12 00:56:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:56:12,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:12,458 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:12,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:12,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-12 00:56:12,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:56:12,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash -855674389, now seen corresponding path program 1 times [2023-11-12 00:56:12,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:12,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289752367] [2023-11-12 00:56:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:12,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289752367] [2023-11-12 00:56:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289752367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969482338] [2023-11-12 00:56:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:12,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:12,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:12,839 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:12,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:56:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:12,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:56:12,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:12,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:12,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969482338] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131755630] [2023-11-12 00:56:12,982 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-12 00:56:12,983 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:56:12,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:56:12,984 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:56:12,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:56:13,462 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:56:13,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1131755630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:13,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:13,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 12 [2023-11-12 00:56:13,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691865317] [2023-11-12 00:56:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:13,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:13,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:13,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2023-11-12 00:56:13,677 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:13,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:13,729 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-11-12 00:56:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:56:13,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 00:56:13,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:13,730 INFO L225 Difference]: With dead ends: 13 [2023-11-12 00:56:13,730 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:56:13,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2023-11-12 00:56:13,732 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:13,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:13,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:56:13,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:56:13,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:56:13,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-12 00:56:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:13,733 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:56:13,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:56:13,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:56:13,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:56:13,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-12 00:56:13,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-12 00:56:13,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-12 00:56:13,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-12 00:56:13,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:13,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 00:56:13,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-12 00:56:14,030 INFO L899 garLoopResultBuilder]: For program point L21-4(line 21) no Hoare annotation was computed. [2023-11-12 00:56:14,031 INFO L895 garLoopResultBuilder]: At program point L21-5(lines 21 41) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) [2023-11-12 00:56:14,031 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:56:14,031 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-12 00:56:14,031 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2023-11-12 00:56:14,031 INFO L899 garLoopResultBuilder]: For program point L43-4(line 43) no Hoare annotation was computed. [2023-11-12 00:56:14,032 INFO L895 garLoopResultBuilder]: At program point L43-5(lines 43 49) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) [2023-11-12 00:56:14,035 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:56:14,038 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:14,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:14 BoogieIcfgContainer [2023-11-12 00:56:14,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:14,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:14,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:14,059 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:14,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:09" (3/4) ... [2023-11-12 00:56:14,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:56:14,072 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-12 00:56:14,073 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:56:14,074 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:56:14,074 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:56:14,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:56:14,185 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:56:14,185 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:14,185 INFO L158 Benchmark]: Toolchain (without parser) took 5389.85ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 119.4MB in the beginning and 99.7MB in the end (delta: 19.7MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,186 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:14,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.66ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 108.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.97ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 107.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,187 INFO L158 Benchmark]: Boogie Preprocessor took 27.25ms. Allocated memory is still 165.7MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,187 INFO L158 Benchmark]: RCFGBuilder took 511.53ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 133.0MB in the end (delta: -27.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,188 INFO L158 Benchmark]: TraceAbstraction took 4446.04ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 133.0MB in the beginning and 105.0MB in the end (delta: 28.0MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,188 INFO L158 Benchmark]: Witness Printer took 126.15ms. Allocated memory is still 211.8MB. Free memory was 105.0MB in the beginning and 99.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:56:14,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.66ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 108.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.97ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 107.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.25ms. Allocated memory is still 165.7MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.53ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 133.0MB in the end (delta: -27.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4446.04ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 133.0MB in the beginning and 105.0MB in the end (delta: 28.0MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Witness Printer took 126.15ms. Allocated memory is still 211.8MB. Free memory was 105.0MB in the beginning and 99.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 12 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 38 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 52 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 3 NumberOfNonLiveVariables, 248 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 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: 1.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 34, TOOLS_POST_TIME: 0.9s, 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: 34, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 68, 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: 4, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, 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: 92, DAG_COMPRESSION_RETAINED_NODES: 51, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (0 <= i) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (0 <= i) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:56:14,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67e751c-45b1-4e36-83a5-f4b7678c12da/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