./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba --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 c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 --- 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-b5237d8 [2022-11-22 02:01:58,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:01:58,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:01:58,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:01:58,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:01:58,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:01:58,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:01:58,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:01:58,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:01:58,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:01:58,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:01:58,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:01:58,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:01:58,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:01:58,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:01:58,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:01:58,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:01:58,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:01:58,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:01:58,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:01:58,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:01:58,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:01:58,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:01:58,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:01:58,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:01:58,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:01:58,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:01:58,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:01:58,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:01:58,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:01:58,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:01:58,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:01:58,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:01:58,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:01:58,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:01:58,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:01:58,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:01:58,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:01:58,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:01:58,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:01:58,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:01:58,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:01:58,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:01:58,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:01:58,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:01:58,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:01:58,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:01:58,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:01:58,751 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:01:58,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:01:58,752 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:01:58,752 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:01:58,753 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:01:58,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:01:58,754 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:01:58,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:01:58,755 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:01:58,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:01:58,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:01:58,756 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:01:58,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:01:58,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:01:58,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:01:58,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:01:58,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:01:58,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:01:58,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:01:58,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:01:58,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:01:58,761 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:01:58,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:01:58,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:01:58,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:01:58,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:01:58,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:01:58,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:01:58,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:01:58,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:01:58,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:01:58,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:01:58,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:01:58,767 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:01:58,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:01:58,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:01:58,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:01:58,768 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_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 [2022-11-22 02:01:59,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:01:59,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:01:59,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:01:59,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:01:59,201 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:01:59,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-22 02:02:02,718 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:02:03,178 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:02:03,184 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-22 02:02:03,210 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/data/a7cc53572/ab6dc0e1ef604b83a3d0eb2b8ffd2cc5/FLAG9e4d57b22 [2022-11-22 02:02:03,229 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/data/a7cc53572/ab6dc0e1ef604b83a3d0eb2b8ffd2cc5 [2022-11-22 02:02:03,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:02:03,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:02:03,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:03,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:02:03,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:02:03,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:03" (1/1) ... [2022-11-22 02:02:03,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f10ea9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:03, skipping insertion in model container [2022-11-22 02:02:03,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:03" (1/1) ... [2022-11-22 02:02:03,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:02:03,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:02:04,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:04,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:02:04,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:04,427 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:02:04,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04 WrapperNode [2022-11-22 02:02:04,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:04,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:04,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:02:04,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:02:04,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,516 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 118 [2022-11-22 02:02:04,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:04,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:02:04,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:02:04,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:02:04,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:02:04,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:02:04,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:02:04,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:02:04,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (1/1) ... [2022-11-22 02:02:04,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:04,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:02:04,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:02:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:02:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:02:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:02:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:02:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:02:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:02:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:02:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:02:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:02:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:02:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:02:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:02:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:02:04,701 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:02:04,924 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:02:04,943 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:05,458 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:05,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:05,468 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:02:05,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:05 BoogieIcfgContainer [2022-11-22 02:02:05,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:05,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:05,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:05,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:05,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:03" (1/3) ... [2022-11-22 02:02:05,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12804947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:05, skipping insertion in model container [2022-11-22 02:02:05,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:04" (2/3) ... [2022-11-22 02:02:05,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12804947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:05, skipping insertion in model container [2022-11-22 02:02:05,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:05" (3/3) ... [2022-11-22 02:02:05,484 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-11-22 02:02:05,494 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:02:05,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:05,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:02:05,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:02:05,598 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:02:05,671 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:02:05,704 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 149 transitions, 303 flow [2022-11-22 02:02:05,716 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 149 transitions, 303 flow [2022-11-22 02:02:05,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 149 transitions, 303 flow [2022-11-22 02:02:05,822 INFO L130 PetriNetUnfolder]: 4/148 cut-off events. [2022-11-22 02:02:05,823 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:02:05,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 148 events. 4/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2022-11-22 02:02:05,830 INFO L119 LiptonReduction]: Number of co-enabled transitions 1672 [2022-11-22 02:02:29,320 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:02:34,506 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:02:40,387 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:02:45,268 INFO L134 LiptonReduction]: Checked pairs total: 3041 [2022-11-22 02:02:45,269 INFO L136 LiptonReduction]: Total number of compositions: 156 [2022-11-22 02:02:45,278 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 21 transitions, 47 flow [2022-11-22 02:02:45,289 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5 states, 2 states have (on average 2.5) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:45,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:45,315 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;@1747b8f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:45,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:02:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 5 states, 2 states have (on average 2.5) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:02:45,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:45,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:02:45,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-22 02:02:45,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash 17162, now seen corresponding path program 1 times [2022-11-22 02:02:45,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:45,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557516927] [2022-11-22 02:02:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:45,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:45,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:45,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557516927] [2022-11-22 02:02:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557516927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:45,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:45,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:02:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753133253] [2022-11-22 02:02:45,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:45,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:02:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:02:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:45,543 INFO L87 Difference]: Start difference. First operand has 5 states, 2 states have (on average 2.5) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:02:45,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:45,661 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2022-11-22 02:02:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:02:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:02:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:45,673 INFO L225 Difference]: With dead ends: 4 [2022-11-22 02:02:45,673 INFO L226 Difference]: Without dead ends: 3 [2022-11-22 02:02:45,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:45,679 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:45,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:02:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states. [2022-11-22 02:02:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2022-11-22 02:02:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2022-11-22 02:02:45,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states and 3 transitions. Word has length 2 [2022-11-22 02:02:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:45,717 INFO L495 AbstractCegarLoop]: Abstraction has 3 states and 3 transitions. [2022-11-22 02:02:45,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:02:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states and 3 transitions. [2022-11-22 02:02:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:02:45,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:45,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:02:45,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:02:45,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-22 02:02:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:45,721 INFO L85 PathProgramCache]: Analyzing trace with hash 17182, now seen corresponding path program 1 times [2022-11-22 02:02:45,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:45,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113541394] [2022-11-22 02:02:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:45,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:45,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113541394] [2022-11-22 02:02:45,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113541394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:45,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:45,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:02:45,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437098413] [2022-11-22 02:02:45,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:45,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:02:45,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:02:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:45,838 INFO L87 Difference]: Start difference. First operand 3 states and 3 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:02:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:45,848 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2022-11-22 02:02:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:02:45,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:02:45,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:45,849 INFO L225 Difference]: With dead ends: 4 [2022-11-22 02:02:45,849 INFO L226 Difference]: Without dead ends: 4 [2022-11-22 02:02:45,850 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 [2022-11-22 02:02:45,851 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:45,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2022-11-22 02:02:45,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2022-11-22 02:02:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-11-22 02:02:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2022-11-22 02:02:45,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2022-11-22 02:02:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:45,855 INFO L495 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-22 02:02:45,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:02:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2022-11-22 02:02:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:02:45,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:45,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:02:45,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:02:45,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-22 02:02:45,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash 533983, now seen corresponding path program 1 times [2022-11-22 02:02:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:45,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103404960] [2022-11-22 02:02:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:45,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:45,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:45,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103404960] [2022-11-22 02:02:45,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103404960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:02:45,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880552635] [2022-11-22 02:02:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:45,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:45,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:45,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:45,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:02:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:46,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:02:46,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:46,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:02:46,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880552635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:46,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:02:46,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-22 02:02:46,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333555938] [2022-11-22 02:02:46,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:02:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:02:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:46,105 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:46,115 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2022-11-22 02:02:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:02:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:02:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:46,117 INFO L225 Difference]: With dead ends: 3 [2022-11-22 02:02:46,117 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:02:46,117 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 [2022-11-22 02:02:46,119 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:46,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:02:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:02:46,121 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) [2022-11-22 02:02:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:02:46,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-11-22 02:02:46,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:46,122 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:02:46,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:02:46,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:02:46,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2022-11-22 02:02:46,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2022-11-22 02:02:46,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-22 02:02:46,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:46,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:46,336 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 02:02:46,339 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:02:46,340 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:02:46,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:02:46 BasicIcfg [2022-11-22 02:02:46,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:02:46,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:02:46,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:02:46,345 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:02:46,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:05" (3/4) ... [2022-11-22 02:02:46,349 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:02:46,357 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-22 02:02:46,363 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-22 02:02:46,363 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:02:46,363 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:02:46,423 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:02:46,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:02:46,424 INFO L158 Benchmark]: Toolchain (without parser) took 43191.06ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 130.3MB in the beginning and 136.1MB in the end (delta: -5.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,425 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 165.7MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:46,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1193.83ms. Allocated memory is still 165.7MB. Free memory was 129.7MB in the beginning and 91.2MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.05ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 88.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,426 INFO L158 Benchmark]: Boogie Preprocessor took 76.92ms. Allocated memory is still 165.7MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,427 INFO L158 Benchmark]: RCFGBuilder took 876.72ms. Allocated memory is still 165.7MB. Free memory was 85.9MB in the beginning and 66.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,427 INFO L158 Benchmark]: TraceAbstraction took 40868.70ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 65.5MB in the beginning and 139.7MB in the end (delta: -74.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:46,427 INFO L158 Benchmark]: Witness Printer took 79.65ms. Allocated memory is still 222.3MB. Free memory was 139.7MB in the beginning and 136.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:02:46,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 165.7MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1193.83ms. Allocated memory is still 165.7MB. Free memory was 129.7MB in the beginning and 91.2MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.05ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 88.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.92ms. Allocated memory is still 165.7MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.72ms. Allocated memory is still 165.7MB. Free memory was 85.9MB in the beginning and 66.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 40868.70ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 65.5MB in the beginning and 139.7MB in the end (delta: -74.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.65ms. Allocated memory is still 222.3MB. Free memory was 139.7MB in the beginning and 136.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.6s, 149 PlacesBefore, 23 PlacesAfterwards, 149 TransitionsBefore, 21 TransitionsAfterwards, 1672 CoEnabledTransitionPairs, 10 FixpointIterations, 82 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 156 TotalNumberOfCompositions, 3041 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1785, independent: 1576, independent conditional: 0, independent unconditional: 1576, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1196, independent: 1147, independent conditional: 0, independent unconditional: 1147, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1196, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 345, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1785, independent: 429, independent conditional: 0, independent unconditional: 429, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 1196, unknown conditional: 0, unknown unconditional: 1196] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: 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, 191 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 40.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 39.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:02:46,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db627e1-ef00-4f7e-900a-710dddd63e58/bin/utaipan-g80aRyZoba/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