./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_break.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/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_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_break.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/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_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/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 1cf6b517958e8017b93e9c3e9acb9e36cc315aaa95d19ed1c0795bb5e0096c62 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:24:03,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:24:03,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 14:24:03,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:24:03,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:24:03,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:24:03,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:24:03,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:24:03,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:24:03,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:24:03,498 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:24:03,499 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:24:03,500 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:24:03,500 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:24:03,501 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:24:03,501 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:24:03,502 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:24:03,502 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:24:03,503 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:24:03,504 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:24:03,504 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:24:03,505 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:24:03,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:24:03,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:24:03,507 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:24:03,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:24:03,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:24:03,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:24:03,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:24:03,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:24:03,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:24:03,509 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:24:03,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:24:03,510 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:24:03,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:24:03,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:24:03,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:24:03,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:24:03,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:24:03,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:24:03,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:24:03,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:24:03,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:24:03,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:24:03,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:24:03,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:24:03,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:24:03,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:24:03,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:24:03,513 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_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cf6b517958e8017b93e9c3e9acb9e36cc315aaa95d19ed1c0795bb5e0096c62 [2023-12-02 14:24:03,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:24:03,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:24:03,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:24:03,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:24:03,788 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:24:03,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_break.i [2023-12-02 14:24:06,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:24:06,693 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:24:06,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/sv-benchmarks/c/array-industry-pattern/array_of_struct_break.i [2023-12-02 14:24:06,702 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/data/96d7d16a1/6d02850b91d54361be844717608c4b80/FLAG9786c5663 [2023-12-02 14:24:06,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/data/96d7d16a1/6d02850b91d54361be844717608c4b80 [2023-12-02 14:24:06,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:24:06,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:24:06,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:24:06,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:24:06,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:24:06,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:24:06" (1/1) ... [2023-12-02 14:24:06,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517b1551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:06, skipping insertion in model container [2023-12-02 14:24:06,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:24:06" (1/1) ... [2023-12-02 14:24:06,749 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:24:06,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:24:08,055 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:24:08,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:24:08,084 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:24:08,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08 WrapperNode [2023-12-02 14:24:08,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:24:08,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:24:08,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:24:08,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:24:08,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,120 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-12-02 14:24:08,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:24:08,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:24:08,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:24:08,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:24:08,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:24:08,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:24:08,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:24:08,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:24:08,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (1/1) ... [2023-12-02 14:24:08,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:24:08,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:08,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:24:08,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:24:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:24:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:24:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:24:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:24:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:24:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:24:08,306 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:24:08,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:24:08,432 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:24:08,493 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:24:08,494 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 14:24:08,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:08 BoogieIcfgContainer [2023-12-02 14:24:08,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:24:08,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:24:08,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:24:08,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:24:08,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:24:06" (1/3) ... [2023-12-02 14:24:08,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8428a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:24:08, skipping insertion in model container [2023-12-02 14:24:08,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:08" (2/3) ... [2023-12-02 14:24:08,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8428a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:24:08, skipping insertion in model container [2023-12-02 14:24:08,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:08" (3/3) ... [2023-12-02 14:24:08,506 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_break.i [2023-12-02 14:24:08,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:24:08,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 14:24:08,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:24:08,584 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;@674b89b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:24:08,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 14:24:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:24:08,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:08,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:24:08,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:08,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2990929, now seen corresponding path program 1 times [2023-12-02 14:24:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158417357] [2023-12-02 14:24:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:08,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:08,824 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 14:24:08,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158417357] [2023-12-02 14:24:08,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158417357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:08,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:08,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:24:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924479091] [2023-12-02 14:24:08,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:08,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:08,857 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:08,938 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2023-12-02 14:24:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:08,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 14:24:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:08,953 INFO L225 Difference]: With dead ends: 33 [2023-12-02 14:24:08,953 INFO L226 Difference]: Without dead ends: 23 [2023-12-02 14:24:08,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:24:08,958 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:08,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:08,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-02 14:24:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2023-12-02 14:24:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-12-02 14:24:08,990 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 4 [2023-12-02 14:24:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:08,991 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-12-02 14:24:08,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-12-02 14:24:08,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 14:24:08,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:08,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 14:24:08,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:24:08,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:08,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1422403017, now seen corresponding path program 1 times [2023-12-02 14:24:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:08,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382110808] [2023-12-02 14:24:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,073 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 14:24:09,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382110808] [2023-12-02 14:24:09,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382110808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:09,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:24:09,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651257112] [2023-12-02 14:24:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:09,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:09,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:09,077 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:09,117 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-12-02 14:24:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-02 14:24:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:09,119 INFO L225 Difference]: With dead ends: 23 [2023-12-02 14:24:09,119 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 14:24:09,119 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 14:24:09,121 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:09,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 14:24:09,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-12-02 14:24:09,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.4375) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-12-02 14:24:09,127 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 6 [2023-12-02 14:24:09,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:09,127 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-12-02 14:24:09,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-12-02 14:24:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 14:24:09,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:09,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-12-02 14:24:09,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:24:09,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:09,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 523330642, now seen corresponding path program 1 times [2023-12-02 14:24:09,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:09,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509050780] [2023-12-02 14:24:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:09,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509050780] [2023-12-02 14:24:09,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509050780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:09,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41624671] [2023-12-02 14:24:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:09,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:09,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:24:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:24:09,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:09,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:09,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41624671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:09,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-12-02 14:24:09,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783118182] [2023-12-02 14:24:09,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:24:09,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:24:09,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:09,388 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:09,421 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-12-02 14:24:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:09,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 14:24:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:09,422 INFO L225 Difference]: With dead ends: 20 [2023-12-02 14:24:09,423 INFO L226 Difference]: Without dead ends: 19 [2023-12-02 14:24:09,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:24:09,425 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:09,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-12-02 14:24:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-12-02 14:24:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-12-02 14:24:09,430 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2023-12-02 14:24:09,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:09,431 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-12-02 14:24:09,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,431 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-12-02 14:24:09,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:24:09,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:09,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2023-12-02 14:24:09,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:24:09,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:09,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:09,639 INFO L85 PathProgramCache]: Analyzing trace with hash -956619231, now seen corresponding path program 1 times [2023-12-02 14:24:09,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:09,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219245217] [2023-12-02 14:24:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:24:09,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219245217] [2023-12-02 14:24:09,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219245217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:09,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:24:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990637288] [2023-12-02 14:24:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:09,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:09,686 INFO L87 Difference]: Start difference. First operand 19 states and 22 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 14:24:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:09,712 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-12-02 14:24:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:09,713 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 14:24:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:09,714 INFO L225 Difference]: With dead ends: 20 [2023-12-02 14:24:09,714 INFO L226 Difference]: Without dead ends: 19 [2023-12-02 14:24:09,714 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 14:24:09,715 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:09,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-12-02 14:24:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2023-12-02 14:24:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-12-02 14:24:09,720 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2023-12-02 14:24:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:09,720 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-12-02 14:24:09,720 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 14:24:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-12-02 14:24:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:24:09,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:09,721 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:09,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:24:09,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:09,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -660846999, now seen corresponding path program 1 times [2023-12-02 14:24:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611968004] [2023-12-02 14:24:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:09,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611968004] [2023-12-02 14:24:09,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611968004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:09,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962154659] [2023-12-02 14:24:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:09,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:09,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:24:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:24:09,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:09,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:09,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962154659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:09,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 14:24:09,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441103056] [2023-12-02 14:24:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:24:09,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:24:09,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:09,887 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:09,926 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2023-12-02 14:24:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 14:24:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:09,928 INFO L225 Difference]: With dead ends: 19 [2023-12-02 14:24:09,928 INFO L226 Difference]: Without dead ends: 18 [2023-12-02 14:24:09,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:24:09,929 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:09,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-02 14:24:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2023-12-02 14:24:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-12-02 14:24:09,933 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2023-12-02 14:24:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:09,934 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-12-02 14:24:09,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 14:24:09,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 14:24:09,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:09,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:09,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:24:10,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:10,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 14:24:10,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash 988579601, now seen corresponding path program 1 times [2023-12-02 14:24:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:10,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660616451] [2023-12-02 14:24:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:10,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:24:10,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660616451] [2023-12-02 14:24:10,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660616451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:10,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:10,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:24:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433112215] [2023-12-02 14:24:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:10,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:24:10,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:10,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:24:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:24:10,178 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 14:24:10,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:10,189 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-12-02 14:24:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:24:10,190 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 14:24:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:10,190 INFO L225 Difference]: With dead ends: 14 [2023-12-02 14:24:10,191 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:24:10,191 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 14:24:10,192 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:10,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:10,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:24:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:24:10,193 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 14:24:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:24:10,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-12-02 14:24:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:10,194 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:24:10,194 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), 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 14:24:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:24:10,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:24:10,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 14:24:10,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 14:24:10,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 14:24:10,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 14:24:10,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:24:10,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:24:10,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 14:24:10,213 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2023-12-02 14:24:10,213 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2023-12-02 14:24:10,213 INFO L899 garLoopResultBuilder]: For program point L31-4(line 31) no Hoare annotation was computed. [2023-12-02 14:24:10,213 INFO L895 garLoopResultBuilder]: At program point L31-5(lines 31 35) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~i~0#1|)) [2023-12-02 14:24:10,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 14:24:10,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 30) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~i~0#1|)) [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 30) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:24:10,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 14:24:10,218 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-02 14:24:10,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:24:10,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:24:10 BoogieIcfgContainer [2023-12-02 14:24:10,228 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:24:10,228 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:24:10,228 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:24:10,229 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:24:10,229 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:08" (3/4) ... [2023-12-02 14:24:10,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:24:10,237 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-12-02 14:24:10,238 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 14:24:10,238 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:24:10,238 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:24:10,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:24:10,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:24:10,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:24:10,306 INFO L158 Benchmark]: Toolchain (without parser) took 3587.77ms. Allocated memory was 169.9MB in the beginning and 362.8MB in the end (delta: 192.9MB). Free memory was 131.8MB in the beginning and 140.4MB in the end (delta: -8.6MB). Peak memory consumption was 186.0MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,307 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:24:10,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1365.67ms. Allocated memory was 169.9MB in the beginning and 362.8MB in the end (delta: 192.9MB). Free memory was 131.8MB in the beginning and 180.9MB in the end (delta: -49.1MB). Peak memory consumption was 205.3MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.44ms. Allocated memory is still 362.8MB. Free memory was 180.9MB in the beginning and 179.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,308 INFO L158 Benchmark]: Boogie Preprocessor took 25.71ms. Allocated memory is still 362.8MB. Free memory was 179.8MB in the beginning and 178.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,309 INFO L158 Benchmark]: RCFGBuilder took 347.61ms. Allocated memory is still 362.8MB. Free memory was 178.8MB in the beginning and 163.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,309 INFO L158 Benchmark]: TraceAbstraction took 1729.35ms. Allocated memory is still 362.8MB. Free memory was 162.0MB in the beginning and 144.6MB in the end (delta: 17.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,309 INFO L158 Benchmark]: Witness Printer took 77.27ms. Allocated memory is still 362.8MB. Free memory was 144.6MB in the beginning and 140.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:24:10,312 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 169.9MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1365.67ms. Allocated memory was 169.9MB in the beginning and 362.8MB in the end (delta: 192.9MB). Free memory was 131.8MB in the beginning and 180.9MB in the end (delta: -49.1MB). Peak memory consumption was 205.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.44ms. Allocated memory is still 362.8MB. Free memory was 180.9MB in the beginning and 179.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.71ms. Allocated memory is still 362.8MB. Free memory was 179.8MB in the beginning and 178.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.61ms. Allocated memory is still 362.8MB. Free memory was 178.8MB in the beginning and 163.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1729.35ms. Allocated memory is still 362.8MB. Free memory was 162.0MB in the beginning and 144.6MB in the end (delta: 17.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 77.27ms. Allocated memory is still 362.8MB. Free memory was 144.6MB in the beginning and 140.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 37 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/17 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 4 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:24:10,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fac0870-a1a7-4a78-9b67-906aa26b5fcd/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