./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI --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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- 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-5e519f3 [2022-11-03 02:34:15,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:34:15,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:34:15,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:34:15,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:34:15,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:34:15,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:34:15,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:34:15,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:34:15,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:34:15,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:34:15,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:34:15,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:34:15,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:34:15,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:34:15,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:34:15,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:34:15,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:34:15,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:34:15,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:34:15,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:34:15,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:34:15,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:34:15,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:34:15,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:34:15,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:34:15,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:34:15,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:34:15,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:34:15,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:34:15,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:34:15,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:34:15,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:34:15,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:34:15,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:34:15,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:34:15,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:34:15,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:34:15,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:34:15,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:34:15,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:34:15,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:34:15,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:34:15,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:34:15,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:34:15,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:34:15,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:34:15,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:34:15,641 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:34:15,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:34:15,642 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:34:15,642 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:34:15,642 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:34:15,642 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:34:15,642 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:34:15,643 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:34:15,643 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:34:15,643 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:34:15,643 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:34:15,644 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:34:15,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:34:15,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:34:15,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:34:15,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:34:15,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:34:15,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:34:15,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:34:15,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:34:15,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:34:15,646 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:34:15,647 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:34:15,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:34:15,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:34:15,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:34:15,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:34:15,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:34:15,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:34:15,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:34:15,648 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:34:15,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:34:15,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:34:15,649 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:34:15,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:34:15,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:34:15,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:34:15,650 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2022-11-03 02:34:15,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:34:15,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:34:15,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:34:15,992 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:34:15,993 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:34:15,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2022-11-03 02:34:16,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/data/60c4b02f0/9333192d1fd84d39b8cfa67d4fd458f6/FLAG6bf8043a5 [2022-11-03 02:34:16,604 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:34:16,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2022-11-03 02:34:16,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/data/60c4b02f0/9333192d1fd84d39b8cfa67d4fd458f6/FLAG6bf8043a5 [2022-11-03 02:34:16,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/data/60c4b02f0/9333192d1fd84d39b8cfa67d4fd458f6 [2022-11-03 02:34:16,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:34:16,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:34:16,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:34:16,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:34:16,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:34:16,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:34:16" (1/1) ... [2022-11-03 02:34:16,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd5ae76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:16, skipping insertion in model container [2022-11-03 02:34:16,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:34:16" (1/1) ... [2022-11-03 02:34:16,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:34:16,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:34:17,406 WARN L230 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-11-03 02:34:17,410 WARN L230 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-11-03 02:34:17,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:34:17,424 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:34:17,454 WARN L230 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-11-03 02:34:17,456 WARN L230 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_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-11-03 02:34:17,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:34:17,487 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:34:17,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17 WrapperNode [2022-11-03 02:34:17,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:34:17,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:34:17,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:34:17,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:34:17,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,550 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 92 [2022-11-03 02:34:17,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:34:17,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:34:17,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:34:17,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:34:17,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:34:17,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:34:17,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:34:17,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:34:17,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (1/1) ... [2022-11-03 02:34:17,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:34:17,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:17,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:34:17,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-03 02:34:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:34:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:34:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:34:17,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:34:17,673 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:34:17,793 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:34:17,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:34:18,082 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:34:18,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:34:18,233 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:34:18,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:34:18 BoogieIcfgContainer [2022-11-03 02:34:18,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:34:18,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:34:18,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:34:18,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:34:18,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:34:16" (1/3) ... [2022-11-03 02:34:18,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e2180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:34:18, skipping insertion in model container [2022-11-03 02:34:18,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:34:17" (2/3) ... [2022-11-03 02:34:18,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e2180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:34:18, skipping insertion in model container [2022-11-03 02:34:18,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:34:18" (3/3) ... [2022-11-03 02:34:18,247 INFO L112 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2022-11-03 02:34:18,256 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:34:18,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:34:18,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 02:34:18,266 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:34:18,344 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:34:18,383 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:34:18,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 58 transitions, 121 flow [2022-11-03 02:34:18,413 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 58 transitions, 121 flow [2022-11-03 02:34:18,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 121 flow [2022-11-03 02:34:18,484 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-11-03 02:34:18,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:34:18,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-11-03 02:34:18,488 INFO L118 LiptonReduction]: Number of co-enabled transitions 520 [2022-11-03 02:34:20,568 INFO L133 LiptonReduction]: Checked pairs total: 1074 [2022-11-03 02:34:20,569 INFO L135 LiptonReduction]: Total number of compositions: 51 [2022-11-03 02:34:20,576 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 37 flow [2022-11-03 02:34:20,597 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49 states, 39 states have (on average 2.282051282051282) internal successors, (89), 48 states have internal predecessors, (89), 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) [2022-11-03 02:34:20,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:34:20,628 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;@22e50b72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:34:20,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-03 02:34:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 39 states have (on average 2.282051282051282) internal successors, (89), 48 states have internal predecessors, (89), 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) [2022-11-03 02:34:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 02:34:20,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:20,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 02:34:20,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-11-03 02:34:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:20,646 INFO L85 PathProgramCache]: Analyzing trace with hash 393626, now seen corresponding path program 1 times [2022-11-03 02:34:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:20,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847114332] [2022-11-03 02:34:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:20,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:20,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847114332] [2022-11-03 02:34:20,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847114332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:20,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:20,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:34:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108919303] [2022-11-03 02:34:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:20,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:34:20,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:34:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:34:20,855 INFO L87 Difference]: Start difference. First operand has 49 states, 39 states have (on average 2.282051282051282) internal successors, (89), 48 states have internal predecessors, (89), 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 3.0) 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) [2022-11-03 02:34:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:20,893 INFO L93 Difference]: Finished difference Result 25 states and 43 transitions. [2022-11-03 02:34:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:34:20,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) 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) Word has length 3 [2022-11-03 02:34:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:20,900 INFO L225 Difference]: With dead ends: 25 [2022-11-03 02:34:20,901 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:34:20,901 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 [2022-11-03 02:34:20,905 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:20,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:34:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:34:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:34:20,928 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) [2022-11-03 02:34:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:34:20,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-11-03 02:34:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:20,929 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:34:20,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) 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) [2022-11-03 02:34:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:34:20,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:34:20,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-03 02:34:20,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-03 02:34:20,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-11-03 02:34:20,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-03 02:34:20,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-03 02:34:20,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-03 02:34:20,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-03 02:34:20,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:34:20,943 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 02:34:20,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:34:20,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:34:20,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:34:20 BasicIcfg [2022-11-03 02:34:20,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:34:20,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:34:20,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:34:20,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:34:20,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:34:18" (3/4) ... [2022-11-03 02:34:20,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:34:20,972 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-03 02:34:20,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2022-11-03 02:34:20,979 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-03 02:34:20,980 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-03 02:34:20,980 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:34:21,017 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:34:21,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:34:21,018 INFO L158 Benchmark]: Toolchain (without parser) took 4122.51ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 87.5MB in the beginning and 71.8MB in the end (delta: 15.7MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,019 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:34:21,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.51ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 88.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.32ms. Allocated memory is still 125.8MB. Free memory was 88.4MB in the beginning and 86.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,020 INFO L158 Benchmark]: Boogie Preprocessor took 40.50ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 84.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:34:21,021 INFO L158 Benchmark]: RCFGBuilder took 643.56ms. Allocated memory is still 125.8MB. Free memory was 84.9MB in the beginning and 64.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,022 INFO L158 Benchmark]: TraceAbstraction took 2723.29ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 63.3MB in the beginning and 74.9MB in the end (delta: -11.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,022 INFO L158 Benchmark]: Witness Printer took 55.30ms. Allocated memory is still 155.2MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:34:21,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.51ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 88.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.32ms. Allocated memory is still 125.8MB. Free memory was 88.4MB in the beginning and 86.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.50ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 84.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 643.56ms. Allocated memory is still 125.8MB. Free memory was 84.9MB in the beginning and 64.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2723.29ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 63.3MB in the beginning and 74.9MB in the end (delta: -11.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Witness Printer took 55.30ms. Allocated memory is still 155.2MB. Free memory was 74.9MB in the beginning and 71.8MB 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: 2.2s, 60 PlacesBefore, 19 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 51 TotalNumberOfCompositions, 1074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 760, positive: 691, positive conditional: 0, positive unconditional: 691, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 422, positive: 402, positive conditional: 0, positive unconditional: 402, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 422, positive: 369, positive conditional: 0, positive unconditional: 369, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 760, positive: 289, positive conditional: 0, positive unconditional: 289, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 422, unknown conditional: 0, unknown unconditional: 422] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - 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: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 720]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 720]: 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, 69 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-11-03 02:34:21,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6d10197-f046-4d9d-b7b7-9dd5d0ddbc13/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE