./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/pnr4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/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_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/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_960a3abf-65e0-42e8-9556-2fe30d350227/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 c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:00:14,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:00:14,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 14:00:14,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:00:14,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:00:14,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:00:14,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:00:14,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:00:14,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:00:14,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:00:14,286 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:00:14,287 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:00:14,288 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:00:14,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:00:14,289 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:00:14,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:00:14,290 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:00:14,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:00:14,290 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:00:14,291 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:00:14,291 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:00:14,293 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:00:14,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:00:14,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:00:14,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:00:14,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:00:14,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:00:14,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:00:14,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:00:14,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:00:14,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:00:14,296 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:00:14,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:00:14,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:00:14,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:00:14,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:00:14,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:00:14,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:00:14,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:00:14,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:00:14,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:00:14,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:00:14,300 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:00:14,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:00:14,300 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_960a3abf-65e0-42e8-9556-2fe30d350227/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 [2023-12-02 14:00:14,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:00:14,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:00:14,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:00:14,573 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:00:14,574 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:00:14,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/array-tiling/pnr4.c [2023-12-02 14:00:17,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:00:17,476 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:00:17,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/sv-benchmarks/c/array-tiling/pnr4.c [2023-12-02 14:00:17,484 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/data/fc728973e/8cfa0c3c635d4c5bbd4a71f6c0c52a44/FLAG00e5d8c6f [2023-12-02 14:00:17,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/data/fc728973e/8cfa0c3c635d4c5bbd4a71f6c0c52a44 [2023-12-02 14:00:17,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:00:17,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:00:17,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:00:17,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:00:17,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:00:17,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9eb0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17, skipping insertion in model container [2023-12-02 14:00:17,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:00:17,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:00:17,700 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:00:17,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:00:17,735 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:00:17,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17 WrapperNode [2023-12-02 14:00:17,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:00:17,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:00:17,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:00:17,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:00:17,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,776 INFO L138 Inliner]: procedures = 17, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2023-12-02 14:00:17,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:00:17,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:00:17,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:00:17,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:00:17,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,794 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:00:17,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:00:17,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:00:17,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:00:17,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (1/1) ... [2023-12-02 14:00:17,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:00:17,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:17,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:00:17,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:00:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:00:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:00:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:00:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:00:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2023-12-02 14:00:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2023-12-02 14:00:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:00:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:00:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:00:17,930 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:00:17,932 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:00:18,204 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:00:18,242 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:00:18,243 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 14:00:18,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:00:18 BoogieIcfgContainer [2023-12-02 14:00:18,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:00:18,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:00:18,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:00:18,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:00:18,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:00:17" (1/3) ... [2023-12-02 14:00:18,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e6ccd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:00:18, skipping insertion in model container [2023-12-02 14:00:18,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:17" (2/3) ... [2023-12-02 14:00:18,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e6ccd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:00:18, skipping insertion in model container [2023-12-02 14:00:18,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:00:18" (3/3) ... [2023-12-02 14:00:18,254 INFO L112 eAbstractionObserver]: Analyzing ICFG pnr4.c [2023-12-02 14:00:18,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:00:18,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-12-02 14:00:18,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:00:18,335 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;@b83ec38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:00:18,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-12-02 14:00:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 94 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:00:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:00:18,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:18,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:00:18,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:18,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash 6447465, now seen corresponding path program 1 times [2023-12-02 14:00:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852566653] [2023-12-02 14:00:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:18,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:18,676 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 14:00:18,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:18,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852566653] [2023-12-02 14:00:18,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852566653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:18,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:18,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:00:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676077292] [2023-12-02 14:00:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:18,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:00:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:18,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:00:18,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:18,710 INFO L87 Difference]: Start difference. First operand has 100 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 94 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:18,778 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2023-12-02 14:00:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:00:18,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 14:00:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:18,789 INFO L225 Difference]: With dead ends: 114 [2023-12-02 14:00:18,789 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 14:00:18,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:18,795 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 106 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:18,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 100 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:00:18,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 14:00:18,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-02 14:00:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 54 states have (on average 1.7777777777777777) internal successors, (96), 90 states have internal predecessors, (96), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:00:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2023-12-02 14:00:18,838 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 4 [2023-12-02 14:00:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:18,839 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2023-12-02 14:00:18,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2023-12-02 14:00:18,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 14:00:18,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:18,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 14:00:18,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:00:18,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:18,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash 199871471, now seen corresponding path program 1 times [2023-12-02 14:00:18,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758174073] [2023-12-02 14:00:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:19,042 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 14:00:19,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:19,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758174073] [2023-12-02 14:00:19,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758174073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:19,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:19,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:00:19,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498945557] [2023-12-02 14:00:19,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:19,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:00:19,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:19,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:00:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:00:19,046 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:19,200 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2023-12-02 14:00:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:00:19,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 14:00:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:19,203 INFO L225 Difference]: With dead ends: 96 [2023-12-02 14:00:19,203 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 14:00:19,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:00:19,205 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 278 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:19,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 94 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 14:00:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-02 14:00:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 54 states have (on average 1.7592592592592593) internal successors, (95), 89 states have internal predecessors, (95), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:00:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2023-12-02 14:00:19,221 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 5 [2023-12-02 14:00:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:19,221 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2023-12-02 14:00:19,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2023-12-02 14:00:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:00:19,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:19,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:19,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:00:19,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:19,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash 693213527, now seen corresponding path program 1 times [2023-12-02 14:00:19,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:19,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937627264] [2023-12-02 14:00:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:19,295 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 14:00:19,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:19,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937627264] [2023-12-02 14:00:19,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937627264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:19,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:19,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:00:19,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147132663] [2023-12-02 14:00:19,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:19,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:00:19,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:00:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:19,298 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:19,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:19,415 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2023-12-02 14:00:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:00:19,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 14:00:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:19,417 INFO L225 Difference]: With dead ends: 100 [2023-12-02 14:00:19,417 INFO L226 Difference]: Without dead ends: 98 [2023-12-02 14:00:19,418 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 14:00:19,419 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:19,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 220 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-02 14:00:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-02 14:00:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 57 states have (on average 1.719298245614035) internal successors, (98), 92 states have internal predecessors, (98), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:00:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2023-12-02 14:00:19,432 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 9 [2023-12-02 14:00:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:19,433 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2023-12-02 14:00:19,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2023-12-02 14:00:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 14:00:19,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:19,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:19,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:00:19,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:19,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash -150753909, now seen corresponding path program 1 times [2023-12-02 14:00:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128741617] [2023-12-02 14:00:19,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:19,478 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 14:00:19,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:19,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128741617] [2023-12-02 14:00:19,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128741617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:19,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:19,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:00:19,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610842649] [2023-12-02 14:00:19,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:19,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:00:19,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:00:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:00:19,481 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:00:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:19,656 INFO L93 Difference]: Finished difference Result 183 states and 200 transitions. [2023-12-02 14:00:19,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:00:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-12-02 14:00:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:19,658 INFO L225 Difference]: With dead ends: 183 [2023-12-02 14:00:19,659 INFO L226 Difference]: Without dead ends: 151 [2023-12-02 14:00:19,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:00:19,662 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:19,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 92 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:00:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-02 14:00:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 145. [2023-12-02 14:00:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 100 states have (on average 1.46) internal successors, (146), 135 states have internal predecessors, (146), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:00:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2023-12-02 14:00:19,680 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 12 [2023-12-02 14:00:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:19,682 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2023-12-02 14:00:19,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:00:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2023-12-02 14:00:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 14:00:19,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:19,683 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:19,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:00:19,683 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:19,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:19,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1321614373, now seen corresponding path program 1 times [2023-12-02 14:00:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:19,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160825997] [2023-12-02 14:00:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:00:19,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:19,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160825997] [2023-12-02 14:00:19,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160825997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:19,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:19,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:00:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96357673] [2023-12-02 14:00:19,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:19,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:00:19,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:19,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:00:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:19,843 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:20,049 INFO L93 Difference]: Finished difference Result 159 states and 176 transitions. [2023-12-02 14:00:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:00:20,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 14:00:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:20,052 INFO L225 Difference]: With dead ends: 159 [2023-12-02 14:00:20,052 INFO L226 Difference]: Without dead ends: 150 [2023-12-02 14:00:20,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:20,072 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 203 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:20,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 76 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:00:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-02 14:00:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 145. [2023-12-02 14:00:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 100 states have (on average 1.45) internal successors, (145), 135 states have internal predecessors, (145), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:00:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2023-12-02 14:00:20,090 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 12 [2023-12-02 14:00:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:20,091 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2023-12-02 14:00:20,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:00:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2023-12-02 14:00:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 14:00:20,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:20,093 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:20,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:00:20,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:20,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:20,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1235948748, now seen corresponding path program 1 times [2023-12-02 14:00:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:20,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361399663] [2023-12-02 14:00:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:20,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 14:00:20,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:20,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361399663] [2023-12-02 14:00:20,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361399663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:20,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:20,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:00:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781675830] [2023-12-02 14:00:20,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:20,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:00:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:20,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:00:20,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:20,204 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:20,359 INFO L93 Difference]: Finished difference Result 150 states and 166 transitions. [2023-12-02 14:00:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:00:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2023-12-02 14:00:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:20,361 INFO L225 Difference]: With dead ends: 150 [2023-12-02 14:00:20,361 INFO L226 Difference]: Without dead ends: 148 [2023-12-02 14:00:20,362 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 14:00:20,363 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 23 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:20,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 152 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-02 14:00:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-12-02 14:00:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.4368932038834952) internal successors, (148), 138 states have internal predecessors, (148), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:00:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 164 transitions. [2023-12-02 14:00:20,377 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 164 transitions. Word has length 44 [2023-12-02 14:00:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:20,378 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 164 transitions. [2023-12-02 14:00:20,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 164 transitions. [2023-12-02 14:00:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 14:00:20,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:20,381 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:20,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:00:20,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:20,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1953871166, now seen corresponding path program 1 times [2023-12-02 14:00:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124443764] [2023-12-02 14:00:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:00:20,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:20,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124443764] [2023-12-02 14:00:20,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124443764] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:20,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109694785] [2023-12-02 14:00:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:20,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:20,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:20,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:20,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:00:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:20,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:00:20,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:00:20,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:00:20,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109694785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:20,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:00:20,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-12-02 14:00:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363429358] [2023-12-02 14:00:20,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:20,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:00:20,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:20,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:00:20,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:00:20,700 INFO L87 Difference]: Start difference. First operand 148 states and 164 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 14:00:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:20,896 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2023-12-02 14:00:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:00:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-12-02 14:00:20,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:20,898 INFO L225 Difference]: With dead ends: 148 [2023-12-02 14:00:20,898 INFO L226 Difference]: Without dead ends: 131 [2023-12-02 14:00:20,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:00:20,899 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 85 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:20,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 136 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:00:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-02 14:00:20,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-12-02 14:00:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 121 states have internal predecessors, (131), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:00:20,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 147 transitions. [2023-12-02 14:00:20,910 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 147 transitions. Word has length 54 [2023-12-02 14:00:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:20,910 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 147 transitions. [2023-12-02 14:00:20,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 14:00:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 147 transitions. [2023-12-02 14:00:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 14:00:20,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:20,912 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:20,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:00:21,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:21,116 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:21,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash -481502884, now seen corresponding path program 1 times [2023-12-02 14:00:21,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137038855] [2023-12-02 14:00:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:21,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137038855] [2023-12-02 14:00:21,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137038855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617350811] [2023-12-02 14:00:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:21,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:21,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:21,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:21,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:00:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:21,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:00:21,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:21,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:00:21,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617350811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:21,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:00:21,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 14:00:21,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351542829] [2023-12-02 14:00:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:21,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:00:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:00:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:00:21,365 INFO L87 Difference]: Start difference. First operand 131 states and 147 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:21,511 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2023-12-02 14:00:21,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:00:21,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2023-12-02 14:00:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:21,513 INFO L225 Difference]: With dead ends: 131 [2023-12-02 14:00:21,513 INFO L226 Difference]: Without dead ends: 130 [2023-12-02 14:00:21,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 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 14:00:21,514 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:21,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 112 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-02 14:00:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-12-02 14:00:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 120 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:00:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 146 transitions. [2023-12-02 14:00:21,525 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 146 transitions. Word has length 54 [2023-12-02 14:00:21,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:21,525 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 146 transitions. [2023-12-02 14:00:21,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:21,526 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 146 transitions. [2023-12-02 14:00:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 14:00:21,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:21,527 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:21,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:00:21,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:21,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:21,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash -440463932, now seen corresponding path program 1 times [2023-12-02 14:00:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754157675] [2023-12-02 14:00:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:21,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:00:21,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:21,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754157675] [2023-12-02 14:00:21,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754157675] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973393944] [2023-12-02 14:00:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:21,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:21,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:21,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:21,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:00:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:21,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:00:21,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:00:21,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:00:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:00:22,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973393944] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:00:22,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [926763292] [2023-12-02 14:00:22,105 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 14:00:22,105 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:00:22,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:00:22,113 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:00:22,113 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:00:27,718 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 34 for LOIs [2023-12-02 14:00:27,737 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:00:31,188 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3056#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 536870912 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2023-12-02 14:00:31,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:00:31,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:00:31,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-12-02 14:00:31,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304634460] [2023-12-02 14:00:31,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:00:31,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 14:00:31,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 14:00:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=978, Unknown=16, NotChecked=0, Total=1190 [2023-12-02 14:00:31,191 INFO L87 Difference]: Start difference. First operand 130 states and 146 transitions. Second operand has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-02 14:00:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:31,450 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2023-12-02 14:00:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:00:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 55 [2023-12-02 14:00:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:31,452 INFO L225 Difference]: With dead ends: 195 [2023-12-02 14:00:31,452 INFO L226 Difference]: Without dead ends: 178 [2023-12-02 14:00:31,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=213, Invalid=1103, Unknown=16, NotChecked=0, Total=1332 [2023-12-02 14:00:31,454 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 115 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:31,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 173 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:00:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-02 14:00:31,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2023-12-02 14:00:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 158 states have (on average 1.1265822784810127) internal successors, (178), 161 states have internal predecessors, (178), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:00:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 204 transitions. [2023-12-02 14:00:31,467 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 204 transitions. Word has length 55 [2023-12-02 14:00:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 204 transitions. [2023-12-02 14:00:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-02 14:00:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 204 transitions. [2023-12-02 14:00:31,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 14:00:31,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:31,469 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:31,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 14:00:31,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:31,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:31,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2041687325, now seen corresponding path program 1 times [2023-12-02 14:00:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:31,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884661568] [2023-12-02 14:00:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:31,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884661568] [2023-12-02 14:00:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884661568] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284067418] [2023-12-02 14:00:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:31,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:31,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:31,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:31,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:00:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:31,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:00:31,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:31,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:00:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:31,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284067418] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:00:31,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [663149978] [2023-12-02 14:00:31,926 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2023-12-02 14:00:31,926 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:00:31,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:00:31,927 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:00:31,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:00:36,166 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 34 for LOIs [2023-12-02 14:00:36,179 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:00:39,662 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3832#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= 2147483647 |ULTIMATE.start_main_#t~post12#1|) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999))' at error location [2023-12-02 14:00:39,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:00:39,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:00:39,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-12-02 14:00:39,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559883615] [2023-12-02 14:00:39,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:00:39,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 14:00:39,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:39,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 14:00:39,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1363, Unknown=17, NotChecked=0, Total=1640 [2023-12-02 14:00:39,664 INFO L87 Difference]: Start difference. First operand 176 states and 204 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:39,854 INFO L93 Difference]: Finished difference Result 186 states and 216 transitions. [2023-12-02 14:00:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 14:00:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2023-12-02 14:00:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:39,856 INFO L225 Difference]: With dead ends: 186 [2023-12-02 14:00:39,856 INFO L226 Difference]: Without dead ends: 185 [2023-12-02 14:00:39,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=298, Invalid=1665, Unknown=17, NotChecked=0, Total=1980 [2023-12-02 14:00:39,857 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 247 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:39,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 100 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-02 14:00:39,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-12-02 14:00:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 167 states have (on average 1.1197604790419162) internal successors, (187), 170 states have internal predecessors, (187), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:00:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 213 transitions. [2023-12-02 14:00:39,868 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 213 transitions. Word has length 55 [2023-12-02 14:00:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:39,869 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 213 transitions. [2023-12-02 14:00:39,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 14:00:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 213 transitions. [2023-12-02 14:00:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 14:00:39,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:39,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:39,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:00:40,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 14:00:40,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:40,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:40,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1118948415, now seen corresponding path program 2 times [2023-12-02 14:00:40,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:40,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515161720] [2023-12-02 14:00:40,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:40,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:00:40,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:40,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515161720] [2023-12-02 14:00:40,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515161720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240269374] [2023-12-02 14:00:40,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:00:40,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:40,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:40,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:40,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 14:00:40,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 14:00:40,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:00:40,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:00:40,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 14:00:40,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:00:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 14:00:40,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240269374] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:00:40,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [254337476] [2023-12-02 14:00:40,524 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2023-12-02 14:00:40,525 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:00:40,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:00:40,525 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:00:40,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:00:44,551 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 35 for LOIs [2023-12-02 14:00:44,563 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:00:48,739 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4678#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= 2147483647 |ULTIMATE.start_main_#t~post12#1|) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999))' at error location [2023-12-02 14:00:48,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:00:48,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:00:48,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 3] total 13 [2023-12-02 14:00:48,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227227196] [2023-12-02 14:00:48,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:00:48,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 14:00:48,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 14:00:48,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1541, Unknown=17, NotChecked=0, Total=1806 [2023-12-02 14:00:48,742 INFO L87 Difference]: Start difference. First operand 185 states and 213 transitions. Second operand has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:00:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:49,049 INFO L93 Difference]: Finished difference Result 188 states and 217 transitions. [2023-12-02 14:00:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 14:00:49,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2023-12-02 14:00:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:49,050 INFO L225 Difference]: With dead ends: 188 [2023-12-02 14:00:49,050 INFO L226 Difference]: Without dead ends: 168 [2023-12-02 14:00:49,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 155 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=373, Invalid=2472, Unknown=17, NotChecked=0, Total=2862 [2023-12-02 14:00:49,052 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 155 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:49,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 128 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:00:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-02 14:00:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2023-12-02 14:00:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 151 states have (on average 1.1059602649006623) internal successors, (167), 153 states have internal predecessors, (167), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:00:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 193 transitions. [2023-12-02 14:00:49,061 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 193 transitions. Word has length 64 [2023-12-02 14:00:49,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:49,062 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 193 transitions. [2023-12-02 14:00:49,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:00:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 193 transitions. [2023-12-02 14:00:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 14:00:49,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:49,065 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-12-02 14:00:49,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 14:00:49,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:49,268 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:49,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:49,268 INFO L85 PathProgramCache]: Analyzing trace with hash 848538984, now seen corresponding path program 1 times [2023-12-02 14:00:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741260935] [2023-12-02 14:00:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:49,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-12-02 14:00:49,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:49,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741260935] [2023-12-02 14:00:49,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741260935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:00:49,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:00:49,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:00:49,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953554458] [2023-12-02 14:00:49,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:00:49,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:00:49,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:49,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:00:49,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:00:49,379 INFO L87 Difference]: Start difference. First operand 168 states and 193 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:00:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:49,449 INFO L93 Difference]: Finished difference Result 168 states and 193 transitions. [2023-12-02 14:00:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:00:49,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2023-12-02 14:00:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:49,451 INFO L225 Difference]: With dead ends: 168 [2023-12-02 14:00:49,451 INFO L226 Difference]: Without dead ends: 167 [2023-12-02 14:00:49,452 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 14:00:49,452 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:49,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 60 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-02 14:00:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-12-02 14:00:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 151 states have (on average 1.099337748344371) internal successors, (166), 152 states have internal predecessors, (166), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:00:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 192 transitions. [2023-12-02 14:00:49,462 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 192 transitions. Word has length 129 [2023-12-02 14:00:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:49,463 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 192 transitions. [2023-12-02 14:00:49,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:00:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 192 transitions. [2023-12-02 14:00:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 14:00:49,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:49,465 INFO L195 NwaCegarLoop]: trace histogram [13, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-12-02 14:00:49,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 14:00:49,466 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-12-02 14:00:49,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:49,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2107492182, now seen corresponding path program 2 times [2023-12-02 14:00:49,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:49,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760758832] [2023-12-02 14:00:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:49,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-02 14:00:49,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:49,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760758832] [2023-12-02 14:00:49,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760758832] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:49,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937428113] [2023-12-02 14:00:49,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:00:49,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:49,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:49,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 14:00:49,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 14:00:49,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:00:49,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:00:49,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-12-02 14:00:50,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:00:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-02 14:00:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937428113] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:00:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [205086759] [2023-12-02 14:00:50,489 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 14:00:50,489 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:00:50,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:00:50,490 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:00:50,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:00:54,397 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 34 for LOIs [2023-12-02 14:00:54,408 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:00:58,578 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6342#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 536870912 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2023-12-02 14:00:58,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:00:58,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:00:58,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 8 [2023-12-02 14:00:58,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219910339] [2023-12-02 14:00:58,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:00:58,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:00:58,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:00:58,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:00:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=824, Unknown=16, NotChecked=0, Total=1122 [2023-12-02 14:00:58,581 INFO L87 Difference]: Start difference. First operand 167 states and 192 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-02 14:00:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:58,731 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2023-12-02 14:00:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:00:58,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 139 [2023-12-02 14:00:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:58,732 INFO L225 Difference]: With dead ends: 167 [2023-12-02 14:00:58,732 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:00:58,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 377 SyntacticMatches, 13 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=363, Invalid=1027, Unknown=16, NotChecked=0, Total=1406 [2023-12-02 14:00:58,734 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 217 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:58,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 26 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:00:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:00:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:00:58,735 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 14:00:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:00:58,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2023-12-02 14:00:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:58,736 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:00:58,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-02 14:00:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:00:58,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:00:58,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2023-12-02 14:00:58,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2023-12-02 14:00:58,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2023-12-02 14:00:58,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 38 remaining) [2023-12-02 14:00:58,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2023-12-02 14:00:58,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2023-12-02 14:00:58,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2023-12-02 14:00:58,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2023-12-02 14:00:58,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2023-12-02 14:00:58,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2023-12-02 14:00:58,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2023-12-02 14:00:58,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 14:00:58,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 14:00:58,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:00:59,215 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 16) the Hoare annotation is: true [2023-12-02 14:00:59,215 INFO L899 garLoopResultBuilder]: For program point ReadFromPortEXIT(lines 12 16) no Hoare annotation was computed. [2023-12-02 14:00:59,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 22 85) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 76) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 77) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point L36-4(lines 36 77) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,216 INFO L899 garLoopResultBuilder]: For program point L36-5(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L36-6(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L895 garLoopResultBuilder]: At program point L36-7(lines 36 77) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L36-8(lines 36 77) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L61-2(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L61-3(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,217 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 79) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point L79-3(line 79) no Hoare annotation was computed. [2023-12-02 14:00:59,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L79-4(line 79) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L895 garLoopResultBuilder]: At program point L79-5(lines 79 82) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 24999) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L71-2(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,219 INFO L899 garLoopResultBuilder]: For program point L71-3(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 46) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 39 46) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 24999) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 79) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point L65-1(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point L65-2(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point L65-3(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 56) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 56) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 24999) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-12-02 14:00:59,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 83) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 83) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L75-1(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L75-2(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,223 INFO L899 garLoopResultBuilder]: For program point L75-3(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L895 garLoopResultBuilder]: At program point L59-2(lines 59 66) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* (div ~SIZE~0 4) 4))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 24999) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3))) [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point L51-2(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 14:00:59,225 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2023-12-02 14:00:59,225 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-12-02 14:00:59,225 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 14:00:59,225 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-12-02 14:00:59,228 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:59,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:00:59,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:00:59 BoogieIcfgContainer [2023-12-02 14:00:59,241 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:00:59,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:00:59,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:00:59,242 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:00:59,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:00:18" (3/4) ... [2023-12-02 14:00:59,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:00:59,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ReadFromPort [2023-12-02 14:00:59,252 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-12-02 14:00:59,252 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-02 14:00:59,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 14:00:59,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:00:59,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:00:59,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:00:59,338 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:00:59,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:00:59,338 INFO L158 Benchmark]: Toolchain (without parser) took 41839.64ms. Allocated memory was 153.1MB in the beginning and 690.0MB in the end (delta: 536.9MB). Free memory was 111.5MB in the beginning and 337.9MB in the end (delta: -226.4MB). Peak memory consumption was 309.7MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,339 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:00:59,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.34ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 117.7MB in the end (delta: -6.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.06ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,340 INFO L158 Benchmark]: Boogie Preprocessor took 26.51ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 114.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:00:59,340 INFO L158 Benchmark]: RCFGBuilder took 440.95ms. Allocated memory is still 153.1MB. Free memory was 114.2MB in the beginning and 93.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,341 INFO L158 Benchmark]: TraceAbstraction took 40994.16ms. Allocated memory was 153.1MB in the beginning and 690.0MB in the end (delta: 536.9MB). Free memory was 93.2MB in the beginning and 344.2MB in the end (delta: -251.0MB). Peak memory consumption was 288.0MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,341 INFO L158 Benchmark]: Witness Printer took 96.09ms. Allocated memory is still 690.0MB. Free memory was 344.2MB in the beginning and 337.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 14:00:59,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.34ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 117.7MB in the end (delta: -6.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.06ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.51ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 114.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 440.95ms. Allocated memory is still 153.1MB. Free memory was 114.2MB in the beginning and 93.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 40994.16ms. Allocated memory was 153.1MB in the beginning and 690.0MB in the end (delta: 536.9MB). Free memory was 93.2MB in the beginning and 344.2MB in the end (delta: -251.0MB). Peak memory consumption was 288.0MB. Max. memory is 16.1GB. * Witness Printer took 96.09ms. Allocated memory is still 690.0MB. Free memory was 344.2MB in the beginning and 337.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: 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 2 procedures, 100 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 40.9s, OverallIterations: 13, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1642 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1614 mSDsluCounter, 1469 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 775 mSDsCounter, 210 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1822 IncrementalHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 210 mSolverCounterUnsat, 694 mSDtfsCounter, 1822 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1127 GetRequests, 898 SyntacticMatches, 29 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2860 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=10, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 19 PreInvPairs, 37 NumberOfFragments, 259 HoareAnnotationTreeSize, 19 FomulaSimplifications, 272 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 249 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1057 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1347 ConstructedInterpolants, 0 QuantifiedInterpolants, 4431 SizeOfPredicates, 11 NumberOfNonLiveVariables, 872 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 1298/1455 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 38 specifications checked. All of them hold - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: ((((((1 <= i) && (2 <= SIZE)) && (SIZE <= 99999)) && (SIZE == ((SIZE / 4) * 4))) && (MAX <= 100000)) || (((((i == 0) && (2 <= SIZE)) && (SIZE <= 99999)) && (SIZE == ((SIZE / 4) * 4))) && (MAX <= 100000))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((2 <= SIZE) && (2 <= i)) && (SIZE <= 99999)) && (SIZE == ((SIZE / 4) * 4))) && (MAX <= 100000)) || (((((2 <= SIZE) && (i == 1)) && (SIZE <= 99999)) && (SIZE == ((SIZE / 4) * 4))) && (MAX <= 100000))) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:00:59,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960a3abf-65e0-42e8-9556-2fe30d350227/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE