./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/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_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/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_dbce06a9-7165-43dc-bbd8-7001d043c19f/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 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --- 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 00:35:08,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:35:08,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:35:08,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:35:08,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:35:08,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:35:08,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:35:08,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:35:08,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:35:08,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:35:08,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:35:08,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:35:08,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:35:08,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:35:08,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:35:08,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:35:08,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:35:08,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:35:08,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:35:08,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:35:08,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:35:08,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:35:08,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:35:08,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:35:08,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:35:08,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:35:08,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:35:08,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:35:08,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:35:08,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:35:08,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:35:08,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:35:08,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:35:08,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:35:08,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:35:08,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:35:08,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:35:08,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:35:08,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:35:08,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:35:08,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:35:08,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:35:08,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:35:08,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:35:08,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:35:08,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:35:08,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:35:08,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:35:08,709 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:35:08,709 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:35:08,710 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:35:08,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:35:08,711 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:35:08,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:35:08,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:35:08,712 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:35:08,712 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:35:08,712 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:35:08,712 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:35:08,713 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:35:08,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:35:08,714 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:35:08,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:35:08,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:35:08,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:35:08,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:35:08,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:35:08,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:35:08,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:35:08,716 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:35:08,716 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:35:08,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:35:08,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:35:08,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:35:08,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:35:08,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:35:08,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:08,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:35:08,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:35:08,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:35:08,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:35:08,719 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:35:08,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:35:08,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:35:08,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:35:08,720 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_dbce06a9-7165-43dc-bbd8-7001d043c19f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 [2022-11-22 00:35:08,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:35:09,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:35:09,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:35:09,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:35:09,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:35:09,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-wmm/safe010_tso.i [2022-11-22 00:35:12,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:35:12,312 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:35:12,313 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/sv-benchmarks/c/pthread-wmm/safe010_tso.i [2022-11-22 00:35:12,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/data/b44997a16/fc66bfcb4d8f416da1bdd9e05315bc6d/FLAG3744dadfc [2022-11-22 00:35:12,350 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/data/b44997a16/fc66bfcb4d8f416da1bdd9e05315bc6d [2022-11-22 00:35:12,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:35:12,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:35:12,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:12,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:35:12,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:35:12,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b02e7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12, skipping insertion in model container [2022-11-22 00:35:12,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:35:12,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:35:12,573 WARN L237 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_dbce06a9-7165-43dc-bbd8-7001d043c19f/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2022-11-22 00:35:12,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:12,740 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:35:12,751 WARN L237 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_dbce06a9-7165-43dc-bbd8-7001d043c19f/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2022-11-22 00:35:12,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:12,825 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:35:12,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12 WrapperNode [2022-11-22 00:35:12,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:12,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:12,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:35:12,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:35:12,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,882 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-11-22 00:35:12,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:12,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:35:12,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:35:12,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:35:12,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:35:12,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:35:12,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:35:12,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:35:12,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:12,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:12,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:35:12,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:35:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:35:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 00:35:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:35:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:35:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:35:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-22 00:35:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-22 00:35:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-22 00:35:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-22 00:35:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:35:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 00:35:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:35:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:35:12,999 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 00:35:13,160 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:35:13,162 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:35:13,347 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:35:13,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:35:13,380 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:35:13,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13 BoogieIcfgContainer [2022-11-22 00:35:13,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:35:13,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:35:13,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:35:13,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:35:13,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:35:12" (1/3) ... [2022-11-22 00:35:13,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be295a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:13, skipping insertion in model container [2022-11-22 00:35:13,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (2/3) ... [2022-11-22 00:35:13,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be295a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:13, skipping insertion in model container [2022-11-22 00:35:13,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13" (3/3) ... [2022-11-22 00:35:13,405 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-11-22 00:35:13,420 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:35:13,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:35:13,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 00:35:13,447 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:35:13,544 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:35:13,594 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:35:13,617 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 77 transitions, 164 flow [2022-11-22 00:35:13,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 77 transitions, 164 flow [2022-11-22 00:35:13,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 77 transitions, 164 flow [2022-11-22 00:35:13,699 INFO L130 PetriNetUnfolder]: 2/75 cut-off events. [2022-11-22 00:35:13,700 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:35:13,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 75 events. 2/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-22 00:35:13,714 INFO L119 LiptonReduction]: Number of co-enabled transitions 1168 [2022-11-22 00:35:16,573 INFO L134 LiptonReduction]: Checked pairs total: 2903 [2022-11-22 00:35:16,573 INFO L136 LiptonReduction]: Total number of compositions: 71 [2022-11-22 00:35:16,582 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 19 transitions, 48 flow [2022-11-22 00:35:16,606 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 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 00:35:16,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:35:16,630 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;@421dea66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:35:16,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 00:35:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 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 00:35:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:35:16,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:16,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:35:16,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:35:16,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash 8918969, now seen corresponding path program 1 times [2022-11-22 00:35:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:16,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027116696] [2022-11-22 00:35:16,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:16,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:16,896 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 00:35:16,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:16,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027116696] [2022-11-22 00:35:16,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027116696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:16,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:16,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:35:16,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880729190] [2022-11-22 00:35:16,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:16,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:35:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:16,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:35:16,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:35:16,933 INFO L87 Difference]: Start difference. First operand has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:17,004 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-11-22 00:35:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:35:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:35:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:17,015 INFO L225 Difference]: With dead ends: 49 [2022-11-22 00:35:17,015 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 00:35:17,016 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 00:35:17,022 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:17,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:35:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 00:35:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-22 00:35:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 48 states have internal predecessors, (78), 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 00:35:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 78 transitions. [2022-11-22 00:35:17,068 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 78 transitions. Word has length 4 [2022-11-22 00:35:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:17,070 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 78 transitions. [2022-11-22 00:35:17,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,076 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 78 transitions. [2022-11-22 00:35:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:35:17,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:17,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:35:17,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:35:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -616197309, now seen corresponding path program 1 times [2022-11-22 00:35:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:17,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770378653] [2022-11-22 00:35:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:17,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:17,178 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 00:35:17,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770378653] [2022-11-22 00:35:17,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770378653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:17,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:35:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624641660] [2022-11-22 00:35:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:35:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:35:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:35:17,181 INFO L87 Difference]: Start difference. First operand 49 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:17,216 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2022-11-22 00:35:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:35:17,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 00:35:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:17,220 INFO L225 Difference]: With dead ends: 43 [2022-11-22 00:35:17,220 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 00:35:17,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:35:17,221 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:17,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:35:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 00:35:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-22 00:35:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 42 states have internal predecessors, (68), 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 00:35:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 68 transitions. [2022-11-22 00:35:17,230 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 68 transitions. Word has length 9 [2022-11-22 00:35:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:17,230 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 68 transitions. [2022-11-22 00:35:17,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2022-11-22 00:35:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:35:17,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:17,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:17,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:35:17,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:35:17,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:17,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1922248243, now seen corresponding path program 1 times [2022-11-22 00:35:17,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:17,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524758984] [2022-11-22 00:35:17,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:17,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:17,314 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 00:35:17,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:17,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524758984] [2022-11-22 00:35:17,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524758984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:17,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:17,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:35:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040007707] [2022-11-22 00:35:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:17,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:35:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:35:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:35:17,316 INFO L87 Difference]: Start difference. First operand 43 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:17,352 INFO L93 Difference]: Finished difference Result 25 states and 38 transitions. [2022-11-22 00:35:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:35:17,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:35:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:17,354 INFO L225 Difference]: With dead ends: 25 [2022-11-22 00:35:17,354 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:35:17,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:35:17,356 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:17,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:35:17,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:35:17,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:35:17,363 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 00:35:17,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:35:17,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-22 00:35:17,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:17,363 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:35:17,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:17,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:35:17,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:35:17,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 00:35:17,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-22 00:35:17,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-22 00:35:17,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 00:35:17,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-22 00:35:17,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-22 00:35:17,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 00:35:17,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 00:35:17,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 00:35:17,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 00:35:17,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:35:17,371 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 00:35:17,376 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:35:17,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:35:17,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:35:17 BasicIcfg [2022-11-22 00:35:17,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:35:17,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:35:17,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:35:17,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:35:17,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13" (3/4) ... [2022-11-22 00:35:17,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:35:17,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-22 00:35:17,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-22 00:35:17,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-22 00:35:17,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 00:35:17,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:35:17,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:35:17,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:35:17,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:35:17,421 INFO L158 Benchmark]: Toolchain (without parser) took 5066.34ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 97.5MB in the beginning and 69.1MB in the end (delta: 28.4MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,422 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 86.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:35:17,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.88ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 77.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.56ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,423 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,423 INFO L158 Benchmark]: RCFGBuilder took 478.76ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 74.2MB in the beginning and 186.8MB in the end (delta: -112.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,423 INFO L158 Benchmark]: TraceAbstraction took 3986.57ms. Allocated memory is still 218.1MB. Free memory was 186.1MB in the beginning and 71.2MB in the end (delta: 114.8MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,424 INFO L158 Benchmark]: Witness Printer took 41.42ms. Allocated memory is still 218.1MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:35:17,426 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 142.6MB. Free memory was 87.0MB in the beginning and 86.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.88ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 77.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.56ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.76ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 74.2MB in the beginning and 186.8MB in the end (delta: -112.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3986.57ms. Allocated memory is still 218.1MB. Free memory was 186.1MB in the beginning and 71.2MB in the end (delta: 114.8MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. * Witness Printer took 41.42ms. Allocated memory is still 218.1MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). 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: 3.0s, 82 PlacesBefore, 25 PlacesAfterwards, 77 TransitionsBefore, 19 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 2903 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1860, independent: 1741, independent conditional: 0, independent unconditional: 1741, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 882, independent: 850, independent conditional: 0, independent unconditional: 850, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 882, independent: 834, independent conditional: 0, independent unconditional: 834, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 181, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1860, independent: 891, independent conditional: 0, independent unconditional: 891, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 882, unknown conditional: 0, unknown unconditional: 882] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 728]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 728]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: 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 5 procedures, 96 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 10 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 00:35:17,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbce06a9-7165-43dc-bbd8-7001d043c19f/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