./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/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_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/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_f785c4a2-a233-4c55-9027-32ccf3accd5a/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 6b4ccd44d6ad5c937026f9c7e728382cb906c06e55c568dcdbddf828dfe89bc6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:38:35,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:38:35,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:38:35,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:38:35,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:38:35,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:38:35,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:38:35,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:38:35,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:38:35,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:38:35,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:38:35,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:38:35,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:38:35,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:38:35,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:38:35,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:38:35,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:38:35,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:38:35,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:38:35,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:38:35,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:38:35,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:38:35,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:38:35,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:38:35,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:38:35,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:38:35,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:38:35,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:38:35,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:38:35,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:38:35,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:38:35,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:38:35,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:38:35,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:38:35,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:38:35,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:38:35,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:38:35,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:38:35,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:38:35,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:38:35,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:38:35,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:38:35,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:38:35,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:38:35,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:38:35,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:38:35,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:38:35,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:38:35,698 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:38:35,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:38:35,698 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:38:35,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:38:35,700 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:38:35,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:38:35,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:38:35,701 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:38:35,701 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:38:35,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:38:35,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:38:35,702 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:38:35,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:38:35,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:38:35,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:38:35,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:38:35,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:38:35,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:38:35,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:38:35,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:38:35,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:38:35,707 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:38:35,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:38:35,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:38:35,708 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:38:35,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:38:35,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:38:35,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:38:35,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:35,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:38:35,710 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:38:35,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:38:35,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:38:35,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:38:35,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:38:35,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:38:35,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:38:35,712 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_f785c4a2-a233-4c55-9027-32ccf3accd5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b4ccd44d6ad5c937026f9c7e728382cb906c06e55c568dcdbddf828dfe89bc6 [2022-11-03 02:38:36,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:38:36,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:38:36,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:38:36,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:38:36,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:38:36,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/safe025_power.i [2022-11-03 02:38:36,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/data/7be2424ad/a024f4b520dc4a3caaad07843ece024e/FLAG030074845 [2022-11-03 02:38:36,962 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:38:36,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/sv-benchmarks/c/pthread-wmm/safe025_power.i [2022-11-03 02:38:36,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/data/7be2424ad/a024f4b520dc4a3caaad07843ece024e/FLAG030074845 [2022-11-03 02:38:37,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/data/7be2424ad/a024f4b520dc4a3caaad07843ece024e [2022-11-03 02:38:37,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:38:37,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:38:37,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:37,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:38:37,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:38:37,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:37" (1/1) ... [2022-11-03 02:38:37,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f5e47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:37, skipping insertion in model container [2022-11-03 02:38:37,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:37" (1/1) ... [2022-11-03 02:38:37,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:38:37,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:38:37,585 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_f785c4a2-a233-4c55-9027-32ccf3accd5a/sv-benchmarks/c/pthread-wmm/safe025_power.i[990,1003] [2022-11-03 02:38:37,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:37,970 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:38:37,992 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_f785c4a2-a233-4c55-9027-32ccf3accd5a/sv-benchmarks/c/pthread-wmm/safe025_power.i[990,1003] [2022-11-03 02:38:38,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:38,102 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:38:38,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38 WrapperNode [2022-11-03 02:38:38,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:38,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:38,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:38:38,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:38:38,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,176 INFO L138 Inliner]: procedures = 176, calls = 86, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 336 [2022-11-03 02:38:38,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:38,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:38:38,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:38:38,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:38:38,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:38:38,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:38:38,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:38:38,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:38:38,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (1/1) ... [2022-11-03 02:38:38,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:38,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:38:38,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:38:38,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:38:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:38:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:38:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:38:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:38:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:38:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:38:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 02:38:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 02:38:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 02:38:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 02:38:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-03 02:38:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-03 02:38:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:38:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:38:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:38:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:38:38,374 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:38:38,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:38:38,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:38:40,132 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:38:41,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:38:41,475 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:38:41,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:41 BoogieIcfgContainer [2022-11-03 02:38:41,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:38:41,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:38:41,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:38:41,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:38:41,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:38:37" (1/3) ... [2022-11-03 02:38:41,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adaaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:41, skipping insertion in model container [2022-11-03 02:38:41,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:38" (2/3) ... [2022-11-03 02:38:41,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adaaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:41, skipping insertion in model container [2022-11-03 02:38:41,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:41" (3/3) ... [2022-11-03 02:38:41,492 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_power.i [2022-11-03 02:38:41,502 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:38:41,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:38:41,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-03 02:38:41,515 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:38:41,667 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:38:41,726 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:38:41,743 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-03 02:38:41,747 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-03 02:38:41,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-03 02:38:41,860 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-03 02:38:41,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:38:41,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-03 02:38:41,872 INFO L118 LiptonReduction]: Number of co-enabled transitions 2464 [2022-11-03 02:39:01,207 WARN L234 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 566 DAG size of output: 532 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:39:06,849 WARN L234 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 528 DAG size of output: 527 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:39:39,878 INFO L133 LiptonReduction]: Checked pairs total: 8330 [2022-11-03 02:39:39,878 INFO L135 LiptonReduction]: Total number of compositions: 120 [2022-11-03 02:39:39,886 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 29 transitions, 73 flow [2022-11-03 02:39:39,977 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1270 states, 1244 states have (on average 3.3062700964630225) internal successors, (4113), 1269 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:39,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:39:40,008 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;@6dbea2f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:39:40,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-03 02:39:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 1270 states, 1244 states have (on average 3.3062700964630225) internal successors, (4113), 1269 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:40,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:39:40,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:40,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:39:40,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-03 02:39:40,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash 67114534, now seen corresponding path program 1 times [2022-11-03 02:39:40,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:40,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323710120] [2022-11-03 02:39:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:40,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:40,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323710120] [2022-11-03 02:39:40,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323710120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:40,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:40,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:39:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374085090] [2022-11-03 02:39:40,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:40,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:39:40,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:39:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:39:40,530 INFO L87 Difference]: Start difference. First operand has 1270 states, 1244 states have (on average 3.3062700964630225) internal successors, (4113), 1269 states have internal predecessors, (4113), 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) [2022-11-03 02:39:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:40,753 INFO L93 Difference]: Finished difference Result 702 states and 2017 transitions. [2022-11-03 02:39:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:39:40,756 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 [2022-11-03 02:39:40,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:40,779 INFO L225 Difference]: With dead ends: 702 [2022-11-03 02:39:40,780 INFO L226 Difference]: Without dead ends: 702 [2022-11-03 02:39:40,780 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 02:39:40,784 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:40,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:39:40,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-11-03 02:39:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2022-11-03 02:39:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 684 states have (on average 2.948830409356725) internal successors, (2017), 701 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 2017 transitions. [2022-11-03 02:39:40,873 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 2017 transitions. Word has length 4 [2022-11-03 02:39:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:40,874 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 2017 transitions. [2022-11-03 02:39:40,874 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) [2022-11-03 02:39:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 2017 transitions. [2022-11-03 02:39:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:39:40,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:40,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:40,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:39:40,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-03 02:39:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:40,877 INFO L85 PathProgramCache]: Analyzing trace with hash -671618832, now seen corresponding path program 1 times [2022-11-03 02:39:40,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:40,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124270334] [2022-11-03 02:39:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:40,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:41,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:41,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124270334] [2022-11-03 02:39:41,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124270334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:41,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:41,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:39:41,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32635495] [2022-11-03 02:39:41,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:41,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:39:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:39:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:39:41,050 INFO L87 Difference]: Start difference. First operand 702 states and 2017 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) [2022-11-03 02:39:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:41,217 INFO L93 Difference]: Finished difference Result 562 states and 1647 transitions. [2022-11-03 02:39:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:39:41,218 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 [2022-11-03 02:39:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:41,222 INFO L225 Difference]: With dead ends: 562 [2022-11-03 02:39:41,222 INFO L226 Difference]: Without dead ends: 562 [2022-11-03 02:39:41,222 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 02:39:41,224 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:41,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:39:41,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-03 02:39:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-11-03 02:39:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 556 states have (on average 2.962230215827338) internal successors, (1647), 561 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1647 transitions. [2022-11-03 02:39:41,253 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1647 transitions. Word has length 10 [2022-11-03 02:39:41,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:41,254 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 1647 transitions. [2022-11-03 02:39:41,254 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) [2022-11-03 02:39:41,254 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1647 transitions. [2022-11-03 02:39:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:39:41,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:41,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:41,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:39:41,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-03 02:39:41,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:41,257 INFO L85 PathProgramCache]: Analyzing trace with hash 654653184, now seen corresponding path program 1 times [2022-11-03 02:39:41,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:41,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719633403] [2022-11-03 02:39:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:41,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719633403] [2022-11-03 02:39:41,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719633403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:41,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:41,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:39:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889982045] [2022-11-03 02:39:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:41,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:39:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:41,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:39:41,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:39:41,411 INFO L87 Difference]: Start difference. First operand 562 states and 1647 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:41,577 INFO L93 Difference]: Finished difference Result 458 states and 1364 transitions. [2022-11-03 02:39:41,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:39:41,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-03 02:39:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:41,581 INFO L225 Difference]: With dead ends: 458 [2022-11-03 02:39:41,581 INFO L226 Difference]: Without dead ends: 458 [2022-11-03 02:39:41,582 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 02:39:41,583 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:41,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 6 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:39:41,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-03 02:39:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-11-03 02:39:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 455 states have (on average 2.997802197802198) internal successors, (1364), 457 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1364 transitions. [2022-11-03 02:39:41,602 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1364 transitions. Word has length 11 [2022-11-03 02:39:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:41,603 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 1364 transitions. [2022-11-03 02:39:41,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1364 transitions. [2022-11-03 02:39:41,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:39:41,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:41,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:41,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:39:41,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-03 02:39:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1641965554, now seen corresponding path program 1 times [2022-11-03 02:39:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:41,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119912979] [2022-11-03 02:39:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:41,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:41,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:41,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119912979] [2022-11-03 02:39:41,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119912979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:41,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:41,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:39:41,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262019729] [2022-11-03 02:39:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:41,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:39:41,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:39:41,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:39:41,797 INFO L87 Difference]: Start difference. First operand 458 states and 1364 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:41,948 INFO L93 Difference]: Finished difference Result 446 states and 1343 transitions. [2022-11-03 02:39:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:39:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-03 02:39:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:41,949 INFO L225 Difference]: With dead ends: 446 [2022-11-03 02:39:41,949 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:39:41,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:39:41,951 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 53 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:41,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:39:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:39:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:39:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:39:41,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-03 02:39:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:41,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:39:41,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:39:41,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:39:41,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-03 02:39:41,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-03 02:39:41,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-03 02:39:41,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-03 02:39:41,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-03 02:39:41,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-03 02:39:41,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-03 02:39:41,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-03 02:39:41,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-03 02:39:41,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-03 02:39:41,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-03 02:39:41,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-03 02:39:41,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-03 02:39:41,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-03 02:39:41,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-03 02:39:41,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:39:41,963 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 02:39:41,968 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:39:41,968 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:39:41,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:39:41 BasicIcfg [2022-11-03 02:39:41,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:39:41,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:39:41,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:39:41,972 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:39:41,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:41" (3/4) ... [2022-11-03 02:39:41,975 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:39:41,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 02:39:41,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 02:39:41,982 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-03 02:39:41,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 135 nodes and edges [2022-11-03 02:39:41,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-03 02:39:41,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-03 02:39:41,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:39:42,053 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:39:42,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:39:42,054 INFO L158 Benchmark]: Toolchain (without parser) took 64822.18ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 76.8MB in the beginning and 61.9MB in the end (delta: 14.8MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,054 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:39:42,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 864.93ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 73.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.99ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 70.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,055 INFO L158 Benchmark]: Boogie Preprocessor took 59.15ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 66.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,056 INFO L158 Benchmark]: RCFGBuilder took 3242.36ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 96.5MB in the end (delta: -29.5MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,056 INFO L158 Benchmark]: TraceAbstraction took 60489.02ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 95.4MB in the beginning and 68.4MB in the end (delta: 27.1MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,057 INFO L158 Benchmark]: Witness Printer took 81.84ms. Allocated memory is still 207.6MB. Free memory was 68.4MB in the beginning and 61.9MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:39:42,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 864.93ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 73.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.99ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 70.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.15ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 66.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3242.36ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 96.5MB in the end (delta: -29.5MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * TraceAbstraction took 60489.02ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 95.4MB in the beginning and 68.4MB in the end (delta: 27.1MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. * Witness Printer took 81.84ms. Allocated memory is still 207.6MB. Free memory was 68.4MB in the beginning and 61.9MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.1s, 145 PlacesBefore, 39 PlacesAfterwards, 137 TransitionsBefore, 29 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 120 TotalNumberOfCompositions, 8330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3097, positive: 2793, positive conditional: 0, positive unconditional: 2793, negative: 304, negative conditional: 0, negative unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1699, positive: 1640, positive conditional: 0, positive unconditional: 1640, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1699, positive: 1623, positive conditional: 0, positive unconditional: 1623, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6156, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 2245, negative conditional: 0, negative unconditional: 2245, unknown: 3866, unknown conditional: 0, unknown unconditional: 3866] ], Cache Queries: [ total: 3097, positive: 1153, positive conditional: 0, positive unconditional: 1153, negative: 245, negative conditional: 0, negative unconditional: 245, unknown: 1699, unknown conditional: 0, unknown unconditional: 1699] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - 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: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: 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 7 procedures, 168 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 60.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 58.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 11 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1270occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:39:42,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f785c4a2-a233-4c55-9027-32ccf3accd5a/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