./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:28:27,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:28:27,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:28:27,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:28:27,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:28:27,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:28:27,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:28:27,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:28:27,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:28:27,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:28:27,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:28:27,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:28:27,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:28:27,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:28:27,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:28:27,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:28:27,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:28:27,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:28:27,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:28:27,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:28:27,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:28:27,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:28:27,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:28:27,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:28:27,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:28:27,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:28:27,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:28:27,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:28:27,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:28:27,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:28:27,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:28:27,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:28:27,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:28:27,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:28:27,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:28:27,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:28:27,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:28:27,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:28:27,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:28:27,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:28:27,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:28:27,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:28:27,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:28:27,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:28:27,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:28:27,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:28:27,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:28:27,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:28:27,637 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:28:27,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:28:27,637 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:28:27,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:28:27,638 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:28:27,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:28:27,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:28:27,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:28:27,639 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:28:27,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:28:27,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:28:27,640 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:28:27,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:28:27,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:28:27,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:28:27,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:28:27,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:28:27,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:28:27,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:28:27,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:28:27,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:28:27,644 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:28:27,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:28:27,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:28:27,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:28:27,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:28:27,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:28:27,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:28:27,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:27,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:28:27,647 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:28:27,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:28:27,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:28:27,647 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:28:27,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:28:27,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:28:27,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:28:27,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2022-11-19 08:28:27,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:28:27,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:28:27,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:28:27,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:28:27,947 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:28:27,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-11-19 08:28:28,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/data/3dffeb5bd/a55632a5d89b407e9923bebbf8d8492a/FLAG8c9917e81 [2022-11-19 08:28:28,521 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:28:28,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-11-19 08:28:28,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/data/3dffeb5bd/a55632a5d89b407e9923bebbf8d8492a/FLAG8c9917e81 [2022-11-19 08:28:28,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/data/3dffeb5bd/a55632a5d89b407e9923bebbf8d8492a [2022-11-19 08:28:28,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:28:28,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:28:28,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:28,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:28:28,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:28:28,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:28" (1/1) ... [2022-11-19 08:28:28,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e5f99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:28, skipping insertion in model container [2022-11-19 08:28:28,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:28" (1/1) ... [2022-11-19 08:28:28,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:28:28,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:28:29,190 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-11-19 08:28:29,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:29,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:28:29,417 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-11-19 08:28:29,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:29,511 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:28:29,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29 WrapperNode [2022-11-19 08:28:29,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:29,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:29,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:28:29,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:28:29,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,588 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2022-11-19 08:28:29,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:29,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:28:29,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:28:29,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:28:29,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:28:29,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:28:29,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:28:29,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:28:29,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (1/1) ... [2022-11-19 08:28:29,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:29,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:29,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:28:29,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:28:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:28:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-19 08:28:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-19 08:28:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:28:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:28:29,717 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:28:29,924 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:28:29,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:28:30,215 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:28:30,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:28:30,223 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:28:30,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:30 BoogieIcfgContainer [2022-11-19 08:28:30,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:28:30,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:28:30,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:28:30,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:28:30,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:28:28" (1/3) ... [2022-11-19 08:28:30,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398fcf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:30, skipping insertion in model container [2022-11-19 08:28:30,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:29" (2/3) ... [2022-11-19 08:28:30,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398fcf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:30, skipping insertion in model container [2022-11-19 08:28:30,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:30" (3/3) ... [2022-11-19 08:28:30,234 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-11-19 08:28:30,243 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:28:30,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:28:30,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 08:28:30,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:28:30,336 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 08:28:30,382 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:28:30,397 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 116 transitions, 240 flow [2022-11-19 08:28:30,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 116 transitions, 240 flow [2022-11-19 08:28:30,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 116 transitions, 240 flow [2022-11-19 08:28:30,470 INFO L130 PetriNetUnfolder]: 3/115 cut-off events. [2022-11-19 08:28:30,470 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 08:28:30,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 115 events. 3/115 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-11-19 08:28:30,478 INFO L119 LiptonReduction]: Number of co-enabled transitions 2184 [2022-11-19 08:28:35,350 INFO L134 LiptonReduction]: Checked pairs total: 6400 [2022-11-19 08:28:35,350 INFO L136 LiptonReduction]: Total number of compositions: 112 [2022-11-19 08:28:35,364 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 30 transitions, 68 flow [2022-11-19 08:28:35,396 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110 states, 106 states have (on average 2.0283018867924527) internal successors, (215), 109 states have internal predecessors, (215), 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) [2022-11-19 08:28:35,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:28:35,422 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=LoopsAndPotentialCycles, 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;@4979d58b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:28:35,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-19 08:28:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 106 states have (on average 2.0283018867924527) internal successors, (215), 109 states have internal predecessors, (215), 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) [2022-11-19 08:28:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:28:35,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:35,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:28:35,435 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-19 08:28:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash 12666718, now seen corresponding path program 1 times [2022-11-19 08:28:35,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:35,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038791346] [2022-11-19 08:28:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:35,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:35,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038791346] [2022-11-19 08:28:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038791346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:35,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:35,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:28:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664924803] [2022-11-19 08:28:35,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:35,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:28:35,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:35,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:28:35,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:35,833 INFO L87 Difference]: Start difference. First operand has 110 states, 106 states have (on average 2.0283018867924527) internal successors, (215), 109 states have internal predecessors, (215), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-19 08:28:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:35,904 INFO L93 Difference]: Finished difference Result 86 states and 151 transitions. [2022-11-19 08:28:35,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:28:35,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-19 08:28:35,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:35,914 INFO L225 Difference]: With dead ends: 86 [2022-11-19 08:28:35,914 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 08:28:35,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:35,918 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:35,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 08:28:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-19 08:28:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.7976190476190477) internal successors, (151), 85 states have internal predecessors, (151), 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) [2022-11-19 08:28:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 151 transitions. [2022-11-19 08:28:35,956 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 151 transitions. Word has length 4 [2022-11-19 08:28:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:35,957 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 151 transitions. [2022-11-19 08:28:35,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-19 08:28:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 151 transitions. [2022-11-19 08:28:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:28:35,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:35,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:35,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:28:35,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-19 08:28:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash -603217245, now seen corresponding path program 1 times [2022-11-19 08:28:35,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:35,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581326429] [2022-11-19 08:28:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:35,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:36,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581326429] [2022-11-19 08:28:36,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581326429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:36,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:36,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:36,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296137160] [2022-11-19 08:28:36,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:36,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:36,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:36,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:28:36,117 INFO L87 Difference]: Start difference. First operand 86 states and 151 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:36,252 INFO L93 Difference]: Finished difference Result 74 states and 128 transitions. [2022-11-19 08:28:36,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:28:36,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 08:28:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:36,253 INFO L225 Difference]: With dead ends: 74 [2022-11-19 08:28:36,253 INFO L226 Difference]: Without dead ends: 74 [2022-11-19 08:28:36,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:28:36,255 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:36,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 8 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-19 08:28:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-19 08:28:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.7534246575342465) internal successors, (128), 73 states have internal predecessors, (128), 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) [2022-11-19 08:28:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 128 transitions. [2022-11-19 08:28:36,263 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 128 transitions. Word has length 7 [2022-11-19 08:28:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:36,264 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 128 transitions. [2022-11-19 08:28:36,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 128 transitions. [2022-11-19 08:28:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:28:36,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:36,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:36,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:28:36,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-19 08:28:36,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash -603217255, now seen corresponding path program 1 times [2022-11-19 08:28:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:36,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969157252] [2022-11-19 08:28:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:36,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:36,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:36,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969157252] [2022-11-19 08:28:36,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969157252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:36,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:36,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305677131] [2022-11-19 08:28:36,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:36,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:36,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:36,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:36,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:28:36,371 INFO L87 Difference]: Start difference. First operand 74 states and 128 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:36,451 INFO L93 Difference]: Finished difference Result 62 states and 105 transitions. [2022-11-19 08:28:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:28:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 08:28:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:36,452 INFO L225 Difference]: With dead ends: 62 [2022-11-19 08:28:36,452 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:28:36,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:28:36,453 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 71 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:36,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:36,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:28:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:28:36,455 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) [2022-11-19 08:28:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:28:36,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-19 08:28:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:36,455 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:28:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:28:36,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:28:36,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-11-19 08:28:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-19 08:28:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-19 08:28:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-19 08:28:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-19 08:28:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-19 08:28:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-19 08:28:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-19 08:28:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-19 08:28:36,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:28:36,463 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-19 08:28:36,467 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:28:36,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:28:36,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:28:36 BasicIcfg [2022-11-19 08:28:36,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:28:36,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:28:36,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:28:36,471 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:28:36,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:30" (3/4) ... [2022-11-19 08:28:36,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:28:36,479 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-19 08:28:36,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-19 08:28:36,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 08:28:36,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 08:28:36,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:28:36,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:28:36,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:28:36,516 INFO L158 Benchmark]: Toolchain (without parser) took 7653.37ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 69.4MB in the beginning and 119.4MB in the end (delta: -50.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,517 INFO L158 Benchmark]: CDTParser took 7.59ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 87.4MB in the end (delta: -8.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.67ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 71.9MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.39ms. Allocated memory is still 107.0MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,518 INFO L158 Benchmark]: Boogie Preprocessor took 36.52ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,518 INFO L158 Benchmark]: RCFGBuilder took 589.90ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 53.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,518 INFO L158 Benchmark]: TraceAbstraction took 6242.84ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 53.1MB in the beginning and 122.5MB in the end (delta: -69.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:28:36,519 INFO L158 Benchmark]: Witness Printer took 45.31ms. Allocated memory is still 163.6MB. Free memory was 122.5MB in the beginning and 119.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:28:36,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 7.59ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 87.4MB in the end (delta: -8.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.67ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 71.9MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.39ms. Allocated memory is still 107.0MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.52ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 589.90ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 53.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6242.84ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 53.1MB in the beginning and 122.5MB in the end (delta: -69.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.31ms. Allocated memory is still 163.6MB. Free memory was 122.5MB in the beginning and 119.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 117 PlacesBefore, 32 PlacesAfterwards, 116 TransitionsBefore, 30 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 112 TotalNumberOfCompositions, 6400 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2773, independent: 2454, independent conditional: 0, independent unconditional: 2454, dependent: 319, dependent conditional: 0, dependent unconditional: 319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1582, independent: 1512, independent conditional: 0, independent unconditional: 1512, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1582, independent: 1404, independent conditional: 0, independent unconditional: 1404, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 178, independent: 108, independent conditional: 0, independent unconditional: 108, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 397, independent: 150, independent conditional: 0, independent unconditional: 150, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2773, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 1582, unknown conditional: 0, unknown unconditional: 1582] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 183 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 183 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:28:36,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b689782-c974-47b2-ba3d-0c473385f7a5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE