./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh --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 c60dc3ce59c2c65912da9b7b458247bdc42b4524b29b39bec7ce63758c18c031 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:19:17,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:19:17,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 17:19:17,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:19:17,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:19:17,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:19:17,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:19:17,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:19:17,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:19:17,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:19:17,714 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:19:17,715 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:19:17,715 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:19:17,716 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:19:17,716 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:19:17,717 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:19:17,717 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:19:17,718 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:19:17,718 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:19:17,719 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:19:17,720 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:19:17,720 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:19:17,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:19:17,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:19:17,722 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:19:17,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:19:17,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:19:17,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:19:17,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:19:17,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:19:17,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:19:17,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:19:17,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:19:17,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:19:17,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:19:17,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:19:17,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:19:17,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:19:17,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:19:17,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:19:17,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:19:17,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:19:17,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:19:17,727 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:19:17,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:19:17,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:19:17,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:19:17,728 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:19:17,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:19:17,728 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_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c60dc3ce59c2c65912da9b7b458247bdc42b4524b29b39bec7ce63758c18c031 [2023-12-02 17:19:17,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:19:17,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:19:17,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:19:17,956 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:19:17,957 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:19:17,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c [2023-12-02 17:19:20,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:19:20,950 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:19:20,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c [2023-12-02 17:19:20,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/data/ce8835f77/0f68200ec7824ebc946f4db69e6e1a4d/FLAGec38f7c2b [2023-12-02 17:19:20,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/data/ce8835f77/0f68200ec7824ebc946f4db69e6e1a4d [2023-12-02 17:19:20,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:19:20,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:19:20,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:19:20,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:19:20,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:19:20,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:19:20" (1/1) ... [2023-12-02 17:19:20,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16bafc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:20, skipping insertion in model container [2023-12-02 17:19:20,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:19:20" (1/1) ... [2023-12-02 17:19:21,003 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:19:21,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:19:21,165 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:19:21,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:19:21,195 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:19:21,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21 WrapperNode [2023-12-02 17:19:21,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:19:21,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:19:21,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:19:21,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:19:21,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,231 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-12-02 17:19:21,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:19:21,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:19:21,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:19:21,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:19:21,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:19:21,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:19:21,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:19:21,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:19:21,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (1/1) ... [2023-12-02 17:19:21,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:19:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:21,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:19:21,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:19:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:19:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:19:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:19:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:19:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:19:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:19:21,389 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:19:21,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:19:21,525 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:19:21,567 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:19:21,568 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 17:19:21,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:19:21 BoogieIcfgContainer [2023-12-02 17:19:21,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:19:21,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:19:21,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:19:21,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:19:21,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:19:20" (1/3) ... [2023-12-02 17:19:21,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b472eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:19:21, skipping insertion in model container [2023-12-02 17:19:21,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:19:21" (2/3) ... [2023-12-02 17:19:21,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b472eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:19:21, skipping insertion in model container [2023-12-02 17:19:21,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:19:21" (3/3) ... [2023-12-02 17:19:21,579 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5.c [2023-12-02 17:19:21,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:19:21,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-02 17:19:21,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:19:21,657 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;@514a56c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:19:21,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-02 17:19:21,661 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) [2023-12-02 17:19:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:19:21,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:21,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:19:21,667 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)] === [2023-12-02 17:19:21,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:21,671 INFO L85 PathProgramCache]: Analyzing trace with hash 3050483, now seen corresponding path program 1 times [2023-12-02 17:19:21,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:21,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085261994] [2023-12-02 17:19:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:21,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:21,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085261994] [2023-12-02 17:19:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085261994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:21,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:19:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:19:21,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186249994] [2023-12-02 17:19:21,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:21,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:19:21,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:19:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:19:22,009 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, 4 states have (on average 1.0) 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) [2023-12-02 17:19:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:22,126 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2023-12-02 17:19:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:19:22,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) 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 [2023-12-02 17:19:22,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:22,137 INFO L225 Difference]: With dead ends: 50 [2023-12-02 17:19:22,138 INFO L226 Difference]: Without dead ends: 29 [2023-12-02 17:19:22,140 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 [2023-12-02 17:19:22,144 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:22,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 33 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:19:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-02 17:19:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2023-12-02 17:19:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-12-02 17:19:22,179 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 4 [2023-12-02 17:19:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:22,179 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-12-02 17:19:22,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) 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) [2023-12-02 17:19:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-12-02 17:19:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:19:22,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:22,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:19:22,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:19:22,181 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)] === [2023-12-02 17:19:22,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:22,182 INFO L85 PathProgramCache]: Analyzing trace with hash 3050712, now seen corresponding path program 1 times [2023-12-02 17:19:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:22,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104166829] [2023-12-02 17:19:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:22,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:22,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104166829] [2023-12-02 17:19:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104166829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:22,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:19:22,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:19:22,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740747649] [2023-12-02 17:19:22,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:22,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:19:22,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:22,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:19:22,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:19:22,268 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 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) [2023-12-02 17:19:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:22,312 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-12-02 17:19:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:19:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2023-12-02 17:19:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:22,313 INFO L225 Difference]: With dead ends: 29 [2023-12-02 17:19:22,313 INFO L226 Difference]: Without dead ends: 27 [2023-12-02 17:19:22,314 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 [2023-12-02 17:19:22,315 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28 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 [2023-12-02 17:19:22,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-02 17:19:22,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2023-12-02 17:19:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 20 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) [2023-12-02 17:19:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-12-02 17:19:22,321 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 4 [2023-12-02 17:19:22,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:22,322 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-12-02 17:19:22,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-12-02 17:19:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-12-02 17:19:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:19:22,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:22,323 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:22,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:19:22,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:22,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:22,324 INFO L85 PathProgramCache]: Analyzing trace with hash -99941426, now seen corresponding path program 1 times [2023-12-02 17:19:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048526742] [2023-12-02 17:19:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:22,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:22,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:22,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048526742] [2023-12-02 17:19:22,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048526742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:22,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:19:22,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:19:22,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395495628] [2023-12-02 17:19:22,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:22,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:19:22,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:19:22,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:19:22,407 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:22,442 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-12-02 17:19:22,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:19:22,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 17:19:22,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:22,443 INFO L225 Difference]: With dead ends: 26 [2023-12-02 17:19:22,443 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 17:19:22,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:19:22,445 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:22,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 17:19:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-02 17:19:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 23 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) [2023-12-02 17:19:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-12-02 17:19:22,450 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2023-12-02 17:19:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:22,451 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-12-02 17:19:22,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-12-02 17:19:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:19:22,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:22,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-12-02 17:19:22,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:19:22,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:22,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:22,453 INFO L85 PathProgramCache]: Analyzing trace with hash -99941197, now seen corresponding path program 1 times [2023-12-02 17:19:22,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:22,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253515502] [2023-12-02 17:19:22,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:22,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:22,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253515502] [2023-12-02 17:19:22,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253515502] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:22,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281850844] [2023-12-02 17:19:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:22,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:22,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:22,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:22,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:19:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:22,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:19:22,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:22,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:19:22,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281850844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:22,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:19:22,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-02 17:19:22,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923268354] [2023-12-02 17:19:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:19:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:19:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:19:22,741 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:22,803 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-12-02 17:19:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:19:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 17:19:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:22,804 INFO L225 Difference]: With dead ends: 30 [2023-12-02 17:19:22,804 INFO L226 Difference]: Without dead ends: 29 [2023-12-02 17:19:22,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:19:22,806 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:22,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-02 17:19:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2023-12-02 17:19:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 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) [2023-12-02 17:19:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-12-02 17:19:22,812 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2023-12-02 17:19:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:22,813 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-12-02 17:19:22,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-12-02 17:19:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:19:22,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:22,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2023-12-02 17:19:22,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:19:23,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-02 17:19:23,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:23,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1196790255, now seen corresponding path program 1 times [2023-12-02 17:19:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458452346] [2023-12-02 17:19:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:23,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:23,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:23,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458452346] [2023-12-02 17:19:23,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458452346] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:23,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703272907] [2023-12-02 17:19:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:23,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:23,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:23,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:19:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:23,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:19:23,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:23,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:23,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703272907] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:23,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324060616] [2023-12-02 17:19:23,335 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2023-12-02 17:19:23,335 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:23,338 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:23,343 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:23,343 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:23,811 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1324060616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:24,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:24,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4, 4] total 16 [2023-12-02 17:19:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975513114] [2023-12-02 17:19:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:24,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:19:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:19:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-02 17:19:24,251 INFO L87 Difference]: Start difference. First operand 23 states and 26 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) [2023-12-02 17:19:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:24,342 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-12-02 17:19:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:19:24,342 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 9 [2023-12-02 17:19:24,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:24,343 INFO L225 Difference]: With dead ends: 36 [2023-12-02 17:19:24,343 INFO L226 Difference]: Without dead ends: 29 [2023-12-02 17:19:24,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-02 17:19:24,345 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:24,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:19:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-02 17:19:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2023-12-02 17:19:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.45) internal successors, (29), 24 states have internal predecessors, (29), 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) [2023-12-02 17:19:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-12-02 17:19:24,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 9 [2023-12-02 17:19:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:24,354 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-12-02 17:19:24,354 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) [2023-12-02 17:19:24,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-12-02 17:19:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:19:24,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:24,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:24,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:19:24,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:24,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:24,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash -942630792, now seen corresponding path program 1 times [2023-12-02 17:19:24,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:24,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264883846] [2023-12-02 17:19:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:24,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:24,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:24,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264883846] [2023-12-02 17:19:24,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264883846] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:24,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112751051] [2023-12-02 17:19:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:24,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:24,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:24,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:24,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:19:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:24,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:19:24,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:24,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:24,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:24,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112751051] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:24,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [310849545] [2023-12-02 17:19:24,884 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 17:19:24,884 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:24,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:24,884 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:24,884 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:25,560 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:25,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [310849545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:25,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:25,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 7, 7] total 19 [2023-12-02 17:19:25,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518307166] [2023-12-02 17:19:25,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:25,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:19:25,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:25,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:19:25,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-12-02 17:19:25,701 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-12-02 17:19:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:25,764 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-12-02 17:19:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:19:25,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 11 [2023-12-02 17:19:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:25,765 INFO L225 Difference]: With dead ends: 25 [2023-12-02 17:19:25,765 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 17:19:25,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-12-02 17:19:25,767 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:25,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 18 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:19:25,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 17:19:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-02 17:19:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.4) internal successors, (28), 23 states have internal predecessors, (28), 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) [2023-12-02 17:19:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-12-02 17:19:25,775 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 11 [2023-12-02 17:19:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:25,775 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-12-02 17:19:25,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-12-02 17:19:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-12-02 17:19:25,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 17:19:25,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:25,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:25,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:19:25,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 17:19:25,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:25,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash 843216574, now seen corresponding path program 1 times [2023-12-02 17:19:25,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:25,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347336531] [2023-12-02 17:19:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:26,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:26,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347336531] [2023-12-02 17:19:26,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347336531] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:26,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372383162] [2023-12-02 17:19:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:26,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:26,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:26,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:26,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:19:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:26,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:19:26,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:26,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:19:26,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372383162] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:26,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1438542771] [2023-12-02 17:19:26,267 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 17:19:26,267 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:26,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:26,268 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:26,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:27,418 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:27,609 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '714#(and (<= 2147483647 |ULTIMATE.start_foo_#t~post0#1|) (= |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_#t~post0#1|) (<= (+ |ULTIMATE.start_foo_~i~0#1| 1) |ULTIMATE.start_foo_~size#1|) (exists ((|v_ULTIMATE.start_foo_~a~0#1_53| (Array Int Int))) (= |ULTIMATE.start_foo_~a~0#1| (store |v_ULTIMATE.start_foo_~a~0#1_53| |ULTIMATE.start_foo_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_foo_~b#1.base|) (+ |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~b#1.offset|))))))' at error location [2023-12-02 17:19:27,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:19:27,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:27,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2023-12-02 17:19:27,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749227971] [2023-12-02 17:19:27,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:19:27,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 17:19:27,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 17:19:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-12-02 17:19:27,611 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2023-12-02 17:19:27,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:27,791 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2023-12-02 17:19:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 17:19:27,792 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 17:19:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:27,793 INFO L225 Difference]: With dead ends: 62 [2023-12-02 17:19:27,793 INFO L226 Difference]: Without dead ends: 45 [2023-12-02 17:19:27,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2023-12-02 17:19:27,795 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:27,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 48 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:19:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-02 17:19:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2023-12-02 17:19:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 33 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) [2023-12-02 17:19:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-12-02 17:19:27,804 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 12 [2023-12-02 17:19:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:27,804 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-12-02 17:19:27,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2023-12-02 17:19:27,804 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-12-02 17:19:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 17:19:27,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:27,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:27,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 17:19:28,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 17:19:28,008 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:28,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash 843223685, now seen corresponding path program 1 times [2023-12-02 17:19:28,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:28,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858192403] [2023-12-02 17:19:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:28,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:28,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:28,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858192403] [2023-12-02 17:19:28,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858192403] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:28,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009319972] [2023-12-02 17:19:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:28,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:28,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:28,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:28,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:19:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:28,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:19:28,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:28,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:19:28,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009319972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:28,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223960158] [2023-12-02 17:19:28,234 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 17:19:28,234 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:28,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:28,234 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:28,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:29,007 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:29,116 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '937#(and (<= 2147483647 |ULTIMATE.start_main_#t~post2#1|) (<= |ULTIMATE.start_foo_#res#1| 2147483647) (<= 0 |ULTIMATE.start_foo_#res#1|) (exists ((|v_#memory_int_41| (Array Int (Array Int Int)))) (= (store |v_#memory_int_41| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_41| |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|)) |#memory_int|)) (= |ULTIMATE.start_main_#t~post2#1| |ULTIMATE.start_main_~i~1#1|))' at error location [2023-12-02 17:19:29,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:19:29,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:29,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2023-12-02 17:19:29,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378993947] [2023-12-02 17:19:29,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:19:29,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 17:19:29,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 17:19:29,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:19:29,119 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:29,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:29,206 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-12-02 17:19:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 17:19:29,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 17:19:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:29,207 INFO L225 Difference]: With dead ends: 46 [2023-12-02 17:19:29,207 INFO L226 Difference]: Without dead ends: 45 [2023-12-02 17:19:29,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-12-02 17:19:29,209 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 50 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:29,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 35 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-02 17:19:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2023-12-02 17:19:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.3) internal successors, (39), 32 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) [2023-12-02 17:19:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-12-02 17:19:29,217 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 12 [2023-12-02 17:19:29,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:29,217 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-12-02 17:19:29,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:29,217 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-12-02 17:19:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:19:29,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:29,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:29,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 17:19:29,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 17:19:29,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:29,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1378780696, now seen corresponding path program 1 times [2023-12-02 17:19:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145391268] [2023-12-02 17:19:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:29,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:29,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145391268] [2023-12-02 17:19:29,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145391268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:29,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:19:29,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:19:29,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287438930] [2023-12-02 17:19:29,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:29,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:19:29,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:29,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:19:29,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:19:29,487 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:29,532 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-12-02 17:19:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:19:29,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 17:19:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:29,534 INFO L225 Difference]: With dead ends: 39 [2023-12-02 17:19:29,534 INFO L226 Difference]: Without dead ends: 37 [2023-12-02 17:19:29,535 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 [2023-12-02 17:19:29,536 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19 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 [2023-12-02 17:19:29,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 19 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-02 17:19:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-02 17:19:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 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) [2023-12-02 17:19:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-12-02 17:19:29,546 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 16 [2023-12-02 17:19:29,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:29,546 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-12-02 17:19:29,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-12-02 17:19:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 17:19:29,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:29,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1] [2023-12-02 17:19:29,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 17:19:29,548 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:29,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:29,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1911900077, now seen corresponding path program 2 times [2023-12-02 17:19:29,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:29,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917570396] [2023-12-02 17:19:29,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:29,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 17:19:29,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917570396] [2023-12-02 17:19:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917570396] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703139671] [2023-12-02 17:19:29,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:19:29,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:29,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:29,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:29,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:19:29,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 17:19:29,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:19:29,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:19:29,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 17:19:29,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 17:19:29,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703139671] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:29,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168291900] [2023-12-02 17:19:29,797 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 17:19:29,797 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:29,798 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:29,798 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:29,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:30,504 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:30,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1281#(and (<= 2147483647 |ULTIMATE.start_foo_#t~post0#1|) (= |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_#t~post0#1|) (exists ((|v_ULTIMATE.start_foo_~a~0#1_90| (Array Int Int))) (= (store |v_ULTIMATE.start_foo_~a~0#1_90| |ULTIMATE.start_foo_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_foo_~b#1.base|) (+ |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~b#1.offset|))) |ULTIMATE.start_foo_~a~0#1|)) (<= (+ |ULTIMATE.start_foo_~i~0#1| 1) |ULTIMATE.start_foo_~size#1|))' at error location [2023-12-02 17:19:30,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:19:30,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:30,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2023-12-02 17:19:30,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171298716] [2023-12-02 17:19:30,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:19:30,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:19:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:30,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:19:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:19:30,646 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2023-12-02 17:19:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:30,757 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2023-12-02 17:19:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:19:30,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) Word has length 19 [2023-12-02 17:19:30,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:30,758 INFO L225 Difference]: With dead ends: 61 [2023-12-02 17:19:30,758 INFO L226 Difference]: Without dead ends: 34 [2023-12-02 17:19:30,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2023-12-02 17:19:30,760 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 27 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:30,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 33 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-02 17:19:30,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2023-12-02 17:19:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 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) [2023-12-02 17:19:30,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-12-02 17:19:30,765 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 19 [2023-12-02 17:19:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:30,765 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-12-02 17:19:30,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2023-12-02 17:19:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-12-02 17:19:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 17:19:30,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:30,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:30,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 17:19:30,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 17:19:30,967 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:30,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash -319272579, now seen corresponding path program 1 times [2023-12-02 17:19:30,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:30,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584758468] [2023-12-02 17:19:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:31,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:31,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584758468] [2023-12-02 17:19:31,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584758468] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:31,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105317316] [2023-12-02 17:19:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:31,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:31,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:31,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:31,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 17:19:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:31,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:19:31,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:31,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:19:31,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105317316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:19:31,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:19:31,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 17:19:31,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513215768] [2023-12-02 17:19:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:19:31,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:19:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:19:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:19:31,130 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2023-12-02 17:19:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:31,173 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-12-02 17:19:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:19:31,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 20 [2023-12-02 17:19:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:31,174 INFO L225 Difference]: With dead ends: 26 [2023-12-02 17:19:31,174 INFO L226 Difference]: Without dead ends: 25 [2023-12-02 17:19:31,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:19:31,175 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:31,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-02 17:19:31,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-02 17:19:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) 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) [2023-12-02 17:19:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-12-02 17:19:31,180 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 20 [2023-12-02 17:19:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:31,181 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-12-02 17:19:31,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2023-12-02 17:19:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-12-02 17:19:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:19:31,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:19:31,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:31,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 17:19:31,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 17:19:31,383 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 17:19:31,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:19:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1307515266, now seen corresponding path program 1 times [2023-12-02 17:19:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:19:31,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870125668] [2023-12-02 17:19:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:19:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:31,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:19:31,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870125668] [2023-12-02 17:19:31,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870125668] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:19:31,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888318147] [2023-12-02 17:19:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:19:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:19:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:19:31,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:19:31,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 17:19:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:19:31,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:19:31,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:19:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:31,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:19:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 17:19:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888318147] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:19:31,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [755697085] [2023-12-02 17:19:31,572 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-12-02 17:19:31,572 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:19:31,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:19:31,572 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:19:31,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:19:32,131 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:19:32,290 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1688#(and (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31) (= |ULTIMATE.start_main_~i~1#1| (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 [2023-12-02 17:19:32,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:19:32,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:19:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-12-02 17:19:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183528190] [2023-12-02 17:19:32,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:19:32,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 17:19:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:19:32,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 17:19:32,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-12-02 17:19:32,292 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:19:32,359 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-12-02 17:19:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:19:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 17:19:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:19:32,359 INFO L225 Difference]: With dead ends: 30 [2023-12-02 17:19:32,360 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 17:19:32,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2023-12-02 17:19:32,361 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:19:32,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 25 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:19:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 17:19:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 17:19:32,362 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) [2023-12-02 17:19:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 17:19:32,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2023-12-02 17:19:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:19:32,362 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 17:19:32,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:19:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 17:19:32,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 17:19:32,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-12-02 17:19:32,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-12-02 17:19:32,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-12-02 17:19:32,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-12-02 17:19:32,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-12-02 17:19:32,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-12-02 17:19:32,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 17:19:32,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 17:19:32,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 17:19:32,842 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 17:19:32,843 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2023-12-02 17:19:32,843 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2023-12-02 17:19:32,843 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (or (let ((.cse1 (+ |#StackHeapBarrier| 1))) (and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_foo_#in~b#1.base| |ULTIMATE.start_foo_~b#1.base|) (= |ULTIMATE.start_foo_#in~b#1.base| |ULTIMATE.start_main_~c~0#1.base|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (= |ULTIMATE.start_foo_#in~b#1.offset| 0) (= |ULTIMATE.start_main_~i~1#1| 0) (= |ULTIMATE.start_foo_~size#1| 0) (= |ULTIMATE.start_foo_~b#1.offset| 0) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (= |ULTIMATE.start_foo_#in~size#1| 0) (exists ((|v_#length_8| (Array Int Int))) (= |#length| (store (store |v_#length_8| |ULTIMATE.start_main_~#b~0#1.base| 128) |ULTIMATE.start_main_~#mask~0#1.base| 32))) (exists ((|v_#valid_23| (Array Int Int))) (let ((.cse0 (store |v_#valid_23| |ULTIMATE.start_main_~#b~0#1.base| 1))) (and (= (select .cse0 |ULTIMATE.start_main_~#mask~0#1.base|) 0) (= (select |v_#valid_23| 0) 0) (= (select |v_#valid_23| |ULTIMATE.start_main_~#b~0#1.base|) 0) (= (store .cse0 |ULTIMATE.start_main_~#mask~0#1.base| 1) |#valid|)))) (= |ULTIMATE.start_foo_~i~0#1| 0) (= |ULTIMATE.start_main_~#mask~0#1.base| |ULTIMATE.start_main_~c~0#1.base|) (<= .cse1 |ULTIMATE.start_main_~#b~0#1.base|) (<= .cse1 |ULTIMATE.start_main_~#mask~0#1.base|))) (and (<= |ULTIMATE.start_foo_~size#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~i~1#1| 2147483645) (<= 0 |ULTIMATE.start_foo_~i~0#1|))) [2023-12-02 17:19:32,843 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 21 35) no Hoare annotation was computed. [2023-12-02 17:19:32,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (<= |ULTIMATE.start_main_~i~1#1| 2147483646) (<= 1 |ULTIMATE.start_main_~i~1#1|))) [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-12-02 17:19:32,844 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2023-12-02 17:19:32,845 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (or (let ((.cse1 (+ |#StackHeapBarrier| 1))) (and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (= |ULTIMATE.start_main_~i~1#1| 0) (exists ((|v_#length_8| (Array Int Int))) (= |#length| (store (store |v_#length_8| |ULTIMATE.start_main_~#b~0#1.base| 128) |ULTIMATE.start_main_~#mask~0#1.base| 32))) (exists ((|v_#valid_23| (Array Int Int))) (let ((.cse0 (store |v_#valid_23| |ULTIMATE.start_main_~#b~0#1.base| 1))) (and (= (select .cse0 |ULTIMATE.start_main_~#mask~0#1.base|) 0) (= (select |v_#valid_23| 0) 0) (= (select |v_#valid_23| |ULTIMATE.start_main_~#b~0#1.base|) 0) (= (store .cse0 |ULTIMATE.start_main_~#mask~0#1.base| 1) |#valid|)))) (<= .cse1 |ULTIMATE.start_main_~#b~0#1.base|) (<= .cse1 |ULTIMATE.start_main_~#mask~0#1.base|))) (and (<= |ULTIMATE.start_main_~i~1#1| 2147483646) (<= 1 |ULTIMATE.start_main_~i~1#1|))) [2023-12-02 17:19:32,845 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 17:19:32,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 17:19:32,845 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-12-02 17:19:32,848 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:19:32,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:19:32,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:19:32,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:19:32,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:19:32,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~c~0 [2023-12-02 17:19:32,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~b!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:19:32,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~b!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:19:32,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[~#b~0!base := 128][~#mask~0!base := 32]) could not be translated [2023-12-02 17:19:32,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_23 : [int]int :: ((v_#valid_23[~#b~0!base := 1][~#mask~0!base] == 0 && v_#valid_23[0] == 0) && v_#valid_23[~#b~0!base] == 0) && v_#valid_23[~#b~0!base := 1][~#mask~0!base := 1] == #valid) could not be translated [2023-12-02 17:19:32,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#mask~0 [2023-12-02 17:19:32,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~c~0 [2023-12-02 17:19:32,870 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#mask~0 [2023-12-02 17:19:32,871 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[~#b~0!base := 128][~#mask~0!base := 32]) could not be translated [2023-12-02 17:19:32,871 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_23 : [int]int :: ((v_#valid_23[~#b~0!base := 1][~#mask~0!base] == 0 && v_#valid_23[0] == 0) && v_#valid_23[~#b~0!base] == 0) && v_#valid_23[~#b~0!base := 1][~#mask~0!base := 1] == #valid) could not be translated [2023-12-02 17:19:32,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:19:32 BoogieIcfgContainer [2023-12-02 17:19:32,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:19:32,873 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:19:32,873 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:19:32,873 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:19:32,874 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:19:21" (3/4) ... [2023-12-02 17:19:32,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 17:19:32,883 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-12-02 17:19:32,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 17:19:32,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 17:19:32,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 17:19:32,913 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((i == 0) && (size == 0)) && (\old(size) == 0)) && (i == 0)) || ((((size <= 2147483647) && (1 <= i)) && (i <= 2147483645)) && (0 <= i))) [2023-12-02 17:19:32,926 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((i == 0) && (size == 0)) && (\old(size) == 0)) && (i == 0)) || ((((size <= 2147483647) && (1 <= i)) && (i <= 2147483645)) && (0 <= i))) [2023-12-02 17:19:32,971 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 17:19:32,972 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 17:19:32,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:19:32,973 INFO L158 Benchmark]: Toolchain (without parser) took 11999.62ms. Allocated memory was 197.1MB in the beginning and 413.1MB in the end (delta: 216.0MB). Free memory was 159.6MB in the beginning and 310.1MB in the end (delta: -150.5MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,973 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:19:32,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.97ms. Allocated memory is still 197.1MB. Free memory was 159.2MB in the beginning and 149.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.35ms. Allocated memory is still 197.1MB. Free memory was 149.6MB in the beginning and 147.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,975 INFO L158 Benchmark]: Boogie Preprocessor took 25.27ms. Allocated memory is still 197.1MB. Free memory was 147.8MB in the beginning and 146.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,975 INFO L158 Benchmark]: RCFGBuilder took 311.68ms. Allocated memory is still 197.1MB. Free memory was 146.6MB in the beginning and 133.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,976 INFO L158 Benchmark]: TraceAbstraction took 11299.98ms. Allocated memory was 197.1MB in the beginning and 413.1MB in the end (delta: 216.0MB). Free memory was 133.2MB in the beginning and 314.3MB in the end (delta: -181.1MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,976 INFO L158 Benchmark]: Witness Printer took 99.16ms. Allocated memory is still 413.1MB. Free memory was 314.3MB in the beginning and 310.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:19:32,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.97ms. Allocated memory is still 197.1MB. Free memory was 159.2MB in the beginning and 149.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.35ms. Allocated memory is still 197.1MB. Free memory was 149.6MB in the beginning and 147.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.27ms. Allocated memory is still 197.1MB. Free memory was 147.8MB in the beginning and 146.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.68ms. Allocated memory is still 197.1MB. Free memory was 146.6MB in the beginning and 133.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11299.98ms. Allocated memory was 197.1MB in the beginning and 413.1MB in the end (delta: 216.0MB). Free memory was 133.2MB in the beginning and 314.3MB in the end (delta: -181.1MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 99.16ms. Allocated memory is still 413.1MB. Free memory was 314.3MB in the beginning and 310.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~b!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~c~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~b!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~b!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[~#b~0!base := 128][~#mask~0!base := 32]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_23 : [int]int :: ((v_#valid_23[~#b~0!base := 1][~#mask~0!base] == 0 && v_#valid_23[0] == 0) && v_#valid_23[~#b~0!base] == 0) && v_#valid_23[~#b~0!base := 1][~#mask~0!base := 1] == #valid) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#mask~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~c~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#mask~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[~#b~0!base := 128][~#mask~0!base := 32]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_23 : [int]int :: ((v_#valid_23[~#b~0!base := 1][~#mask~0!base] == 0 && v_#valid_23[0] == 0) && v_#valid_23[~#b~0!base] == 0) && v_#valid_23[~#b~0!base := 1][~#mask~0!base := 1] == #valid) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 11.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 557 IncrementalHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 92 mSDtfsCounter, 557 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 180 SyntacticMatches, 21 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=9, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 57 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 184 HoareAnnotationTreeSize, 3 FomulaSimplifications, 366 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 245 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 256 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 27 NumberOfNonLiveVariables, 852 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 26 InterpolantComputations, 6 PerfectInterpolantSequences, 130/200 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: 1.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 59, TOOLS_POST_TIME: 1.0s, 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: 57, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 109, 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: 8, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 14, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 0.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 14, 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: 97, DAG_COMPRESSION_RETAINED_NODES: 52, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((i == 0) && (size == 0)) && (\old(size) == 0)) && (i == 0)) || ((((size <= 2147483647) && (1 <= i)) && (i <= 2147483645)) && (0 <= i))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((i == 0) || ((i <= 2147483646) && (1 <= i))) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((i == 0) || ((i <= 2147483646) && (1 <= i))) RESULT: Ultimate proved your program to be correct! [2023-12-02 17:19:32,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59cf96a-7f9b-4fd2-8fdd-7ad5344975bf/bin/utaipan-verify-nQ1chXbOIh/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