./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- 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 04:05:10,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:05:10,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:05:10,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:05:10,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:05:10,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:05:10,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:05:10,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:05:10,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:05:10,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:05:10,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:05:10,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:05:10,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:05:10,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:05:10,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:05:10,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:05:10,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:05:10,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:05:10,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:05:10,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:05:10,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:05:10,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:05:10,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:05:10,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:05:10,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:05:10,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:05:10,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:05:10,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:05:10,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:05:10,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:05:10,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:05:10,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:05:10,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:05:10,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:05:10,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:05:10,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:05:10,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:05:10,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:05:10,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:05:10,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:05:10,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:05:10,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 04:05:10,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:05:10,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:05:10,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:05:10,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:05:10,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:05:10,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:05:10,863 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:05:10,864 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:05:10,864 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:05:10,864 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:05:10,865 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:05:10,865 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:05:10,866 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:05:10,866 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:05:10,866 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:05:10,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:05:10,867 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:05:10,867 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:05:10,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:05:10,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:05:10,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 04:05:10,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:05:10,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:05:10,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:05:10,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:05:10,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:05:10,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:05:10,871 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 04:05:10,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:05:10,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:05:10,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:05:10,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:05:10,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:05:10,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:05:10,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:10,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:05:10,874 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:05:10,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:05:10,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:05:10,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:05:10,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:05:10,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:05:10,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:05:10,875 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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2022-11-03 04:05:11,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:05:11,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:05:11,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:05:11,229 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:05:11,230 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:05:11,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-03 04:05:11,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/data/f2d1240ec/504e4dcc2e2143a0bc03bdb0f1dd5b81/FLAG4a2fedeeb [2022-11-03 04:05:11,981 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:05:11,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-03 04:05:12,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/data/f2d1240ec/504e4dcc2e2143a0bc03bdb0f1dd5b81/FLAG4a2fedeeb [2022-11-03 04:05:12,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/data/f2d1240ec/504e4dcc2e2143a0bc03bdb0f1dd5b81 [2022-11-03 04:05:12,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:05:12,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:05:12,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:12,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:05:12,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:05:12,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e8fcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12, skipping insertion in model container [2022-11-03 04:05:12,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:05:12,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:05:12,516 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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-03 04:05:12,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:12,746 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:05:12,759 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_f9799814-3b6e-4104-b9ef-0a25b8ee696b/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-03 04:05:12,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:12,892 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:05:12,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12 WrapperNode [2022-11-03 04:05:12,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:12,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:12,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:05:12,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:05:12,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,952 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 368 [2022-11-03 04:05:12,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:12,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:05:12,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:05:12,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:05:12,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:12,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:13,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:05:13,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:05:13,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:05:13,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:05:13,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (1/1) ... [2022-11-03 04:05:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:13,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:13,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:05:13,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:05:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:05:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 04:05:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:05:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:05:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:05:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 04:05:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 04:05:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 04:05:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 04:05:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:05:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 04:05:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:05:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:05:13,131 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 04:05:13,351 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:05:13,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:05:14,315 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:05:15,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:05:15,132 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:05:15,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:15 BoogieIcfgContainer [2022-11-03 04:05:15,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:05:15,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:05:15,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:05:15,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:05:15,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:05:12" (1/3) ... [2022-11-03 04:05:15,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e133d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:15, skipping insertion in model container [2022-11-03 04:05:15,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:12" (2/3) ... [2022-11-03 04:05:15,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e133d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:15, skipping insertion in model container [2022-11-03 04:05:15,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:15" (3/3) ... [2022-11-03 04:05:15,142 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-03 04:05:15,152 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 04:05:15,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:05:15,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 04:05:15,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 04:05:15,248 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 04:05:15,300 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 04:05:15,315 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 212 flow [2022-11-03 04:05:15,323 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 212 flow [2022-11-03 04:05:15,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 212 flow [2022-11-03 04:05:15,401 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-03 04:05:15,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 04:05:15,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-03 04:05:15,406 INFO L118 LiptonReduction]: Number of co-enabled transitions 1620 [2022-11-03 04:05:39,432 INFO L133 LiptonReduction]: Checked pairs total: 4884 [2022-11-03 04:05:39,432 INFO L135 LiptonReduction]: Total number of compositions: 89 [2022-11-03 04:05:39,441 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 22 transitions, 54 flow [2022-11-03 04:05:39,505 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 238 states, 230 states have (on average 2.508695652173913) internal successors, (577), 237 states have internal predecessors, (577), 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 04:05:39,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:05:39,544 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;@28c8f4f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:05:39,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-03 04:05:39,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 230 states have (on average 2.508695652173913) internal successors, (577), 237 states have internal predecessors, (577), 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 04:05:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 04:05:39,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:39,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 04:05:39,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 04:05:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash -118901649, now seen corresponding path program 1 times [2022-11-03 04:05:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:39,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030480578] [2022-11-03 04:05:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:39,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:40,058 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 04:05:40,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:40,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030480578] [2022-11-03 04:05:40,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030480578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:40,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:40,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 04:05:40,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544083827] [2022-11-03 04:05:40,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:40,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:05:40,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:05:40,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:40,100 INFO L87 Difference]: Start difference. First operand has 238 states, 230 states have (on average 2.508695652173913) internal successors, (577), 237 states have internal predecessors, (577), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:05:40,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:40,257 INFO L93 Difference]: Finished difference Result 146 states and 327 transitions. [2022-11-03 04:05:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:05:40,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 04:05:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:40,275 INFO L225 Difference]: With dead ends: 146 [2022-11-03 04:05:40,275 INFO L226 Difference]: Without dead ends: 146 [2022-11-03 04:05:40,276 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 [2022-11-03 04:05:40,280 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:40,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-03 04:05:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-03 04:05:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 2.3028169014084505) internal successors, (327), 145 states have internal predecessors, (327), 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 04:05:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 327 transitions. [2022-11-03 04:05:40,353 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 327 transitions. Word has length 6 [2022-11-03 04:05:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:40,354 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 327 transitions. [2022-11-03 04:05:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:05:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 327 transitions. [2022-11-03 04:05:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 04:05:40,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:40,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:40,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:05:40,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 04:05:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash 539172602, now seen corresponding path program 1 times [2022-11-03 04:05:40,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:40,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527579037] [2022-11-03 04:05:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:40,638 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 04:05:40,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:40,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527579037] [2022-11-03 04:05:40,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527579037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:40,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:40,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:05:40,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771155785] [2022-11-03 04:05:40,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:40,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:40,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:40,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:40,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:40,643 INFO L87 Difference]: Start difference. First operand 146 states and 327 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:05:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:40,792 INFO L93 Difference]: Finished difference Result 138 states and 313 transitions. [2022-11-03 04:05:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:05:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-03 04:05:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:40,794 INFO L225 Difference]: With dead ends: 138 [2022-11-03 04:05:40,794 INFO L226 Difference]: Without dead ends: 138 [2022-11-03 04:05:40,795 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 [2022-11-03 04:05:40,796 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:40,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-03 04:05:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-11-03 04:05:40,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 2.301470588235294) internal successors, (313), 137 states have internal predecessors, (313), 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 04:05:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 313 transitions. [2022-11-03 04:05:40,805 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 313 transitions. Word has length 12 [2022-11-03 04:05:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:40,806 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 313 transitions. [2022-11-03 04:05:40,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:05:40,806 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 313 transitions. [2022-11-03 04:05:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 04:05:40,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:40,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:40,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:05:40,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 04:05:40,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:40,809 INFO L85 PathProgramCache]: Analyzing trace with hash -465517590, now seen corresponding path program 1 times [2022-11-03 04:05:40,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:40,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787600183] [2022-11-03 04:05:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:40,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:40,980 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 04:05:40,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:40,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787600183] [2022-11-03 04:05:40,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787600183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:40,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:40,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:05:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603391533] [2022-11-03 04:05:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:40,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:40,984 INFO L87 Difference]: Start difference. First operand 138 states and 313 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 04:05:41,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:41,080 INFO L93 Difference]: Finished difference Result 130 states and 299 transitions. [2022-11-03 04:05:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:05:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-03 04:05:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:41,081 INFO L225 Difference]: With dead ends: 130 [2022-11-03 04:05:41,081 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 04:05:41,081 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 [2022-11-03 04:05:41,082 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:41,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 04:05:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 04:05:41,084 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 04:05:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 04:05:41,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-03 04:05:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:41,085 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 04:05:41,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 04:05:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 04:05:41,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 04:05:41,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-03 04:05:41,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-03 04:05:41,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-03 04:05:41,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-03 04:05:41,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-03 04:05:41,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-03 04:05:41,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-03 04:05:41,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-03 04:05:41,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-03 04:05:41,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-03 04:05:41,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:05:41,095 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 04:05:41,100 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 04:05:41,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:05:41,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:05:41 BasicIcfg [2022-11-03 04:05:41,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:05:41,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:05:41,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:05:41,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:05:41,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:15" (3/4) ... [2022-11-03 04:05:41,108 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 04:05:41,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 04:05:41,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 04:05:41,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-11-03 04:05:41,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-03 04:05:41,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-03 04:05:41,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 04:05:41,190 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:05:41,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:05:41,190 INFO L158 Benchmark]: Toolchain (without parser) took 28951.37ms. Allocated memory was 119.5MB in the beginning and 237.0MB in the end (delta: 117.4MB). Free memory was 84.7MB in the beginning and 132.6MB in the end (delta: -47.9MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,191 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:05:41,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.17ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 78.8MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.88ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 75.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,192 INFO L158 Benchmark]: Boogie Preprocessor took 47.31ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 72.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,192 INFO L158 Benchmark]: RCFGBuilder took 2133.01ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 72.0MB in the beginning and 79.4MB in the end (delta: -7.4MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,193 INFO L158 Benchmark]: TraceAbstraction took 25967.83ms. Allocated memory was 146.8MB in the beginning and 237.0MB in the end (delta: 90.2MB). Free memory was 79.4MB in the beginning and 136.8MB in the end (delta: -57.4MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,193 INFO L158 Benchmark]: Witness Printer took 85.52ms. Allocated memory is still 237.0MB. Free memory was 136.8MB in the beginning and 132.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:05:41,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.17ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 78.8MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.88ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 75.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.31ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 72.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2133.01ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 72.0MB in the beginning and 79.4MB in the end (delta: -7.4MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25967.83ms. Allocated memory was 146.8MB in the beginning and 237.0MB in the end (delta: 90.2MB). Free memory was 79.4MB in the beginning and 136.8MB in the end (delta: -57.4MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 85.52ms. Allocated memory is still 237.0MB. Free memory was 136.8MB in the beginning and 132.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1s, 106 PlacesBefore, 29 PlacesAfterwards, 101 TransitionsBefore, 22 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, 4884 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2337, positive: 2129, positive conditional: 0, positive unconditional: 2129, negative: 208, negative conditional: 0, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1182, positive: 1107, positive conditional: 0, positive unconditional: 1107, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1182, positive: 1087, positive conditional: 0, positive unconditional: 1087, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1526, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2337, positive: 1022, positive conditional: 0, positive unconditional: 1022, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 1182, unknown conditional: 0, unknown unconditional: 1182] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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, 125 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 25.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 24.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 2 mSDtfsCounter, 126 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=238occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 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! [2022-11-03 04:05:41,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9799814-3b6e-4104-b9ef-0a25b8ee696b/bin/utaipan-7li7fVZpFI/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