./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0 --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 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 --- 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-e04fb08 [2022-11-16 19:41:29,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:41:29,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:41:29,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:41:29,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:41:29,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:41:29,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:41:29,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:41:29,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:41:29,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:41:29,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:41:29,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:41:29,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:41:29,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:41:29,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:41:29,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:41:29,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:41:29,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:41:29,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:41:29,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:41:29,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:41:29,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:41:29,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:41:29,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:41:29,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:41:29,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:41:29,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:41:29,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:41:29,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:41:29,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:41:29,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:41:29,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:41:29,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:41:29,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:41:29,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:41:29,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:41:29,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:41:29,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:41:29,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:41:29,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:41:29,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:41:29,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:41:29,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:41:29,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:41:29,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:41:29,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:41:29,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:41:29,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:41:29,470 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:41:29,470 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:41:29,471 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:41:29,471 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:41:29,471 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:41:29,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:41:29,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:41:29,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:41:29,472 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:41:29,473 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:41:29,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:41:29,473 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:41:29,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:41:29,474 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:41:29,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:41:29,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:41:29,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:41:29,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:41:29,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:41:29,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:41:29,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:41:29,487 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:41:29,487 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:41:29,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:41:29,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:41:29,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:41:29,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:41:29,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:41:29,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:41:29,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:41:29,489 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:41:29,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:41:29,491 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_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 [2022-11-16 19:41:29,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:41:29,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:41:29,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:41:29,878 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:41:29,879 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:41:29,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-11-16 19:41:29,966 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/data/c0a5729f3/867e171ecca5403e9692901bc3062be1/FLAGe2e1ea2cb [2022-11-16 19:41:30,629 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:41:30,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-11-16 19:41:30,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/data/c0a5729f3/867e171ecca5403e9692901bc3062be1/FLAGe2e1ea2cb [2022-11-16 19:41:30,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/data/c0a5729f3/867e171ecca5403e9692901bc3062be1 [2022-11-16 19:41:30,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:41:30,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:41:30,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:41:30,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:41:30,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:41:30,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:41:30" (1/1) ... [2022-11-16 19:41:30,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ccb71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:30, skipping insertion in model container [2022-11-16 19:41:30,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:41:30" (1/1) ... [2022-11-16 19:41:30,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:41:30,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:41:31,248 WARN L229 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_8c388176-aeff-4f29-9fa3-31a517bed160/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-11-16 19:41:31,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:41:31,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:41:31,627 WARN L229 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_8c388176-aeff-4f29-9fa3-31a517bed160/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-11-16 19:41:31,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:41:31,749 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:41:31,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31 WrapperNode [2022-11-16 19:41:31,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:41:31,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:41:31,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:41:31,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:41:31,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,845 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2022-11-16 19:41:31,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:41:31,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:41:31,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:41:31,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:41:31,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:41:31,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:41:31,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:41:31,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:41:31,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (1/1) ... [2022-11-16 19:41:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:41:31,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:41:31,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:41:31,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:41:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:41:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:41:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:41:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:41:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:41:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 19:41:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 19:41:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 19:41:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 19:41:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 19:41:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 19:41:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:41:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:41:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:41:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:41:31,992 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 19:41:32,159 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:41:32,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:41:32,609 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:41:32,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:41:32,809 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:41:32,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:41:32 BoogieIcfgContainer [2022-11-16 19:41:32,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:41:32,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:41:32,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:41:32,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:41:32,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:41:30" (1/3) ... [2022-11-16 19:41:32,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:41:32, skipping insertion in model container [2022-11-16 19:41:32,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:41:31" (2/3) ... [2022-11-16 19:41:32,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:41:32, skipping insertion in model container [2022-11-16 19:41:32,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:41:32" (3/3) ... [2022-11-16 19:41:32,824 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_pso.opt_rmo.opt.i [2022-11-16 19:41:32,835 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 19:41:32,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:41:32,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 19:41:32,865 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:41:33,039 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 19:41:33,107 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:41:33,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 120 transitions, 255 flow [2022-11-16 19:41:33,139 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 120 transitions, 255 flow [2022-11-16 19:41:33,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 120 transitions, 255 flow [2022-11-16 19:41:33,228 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2022-11-16 19:41:33,229 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 19:41:33,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-16 19:41:33,239 INFO L119 LiptonReduction]: Number of co-enabled transitions 2562 [2022-11-16 19:41:40,351 INFO L134 LiptonReduction]: Checked pairs total: 8643 [2022-11-16 19:41:40,351 INFO L136 LiptonReduction]: Total number of compositions: 104 [2022-11-16 19:41:40,362 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 31 transitions, 77 flow [2022-11-16 19:41:40,532 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1438 states, 1412 states have (on average 3.5594900849858355) internal successors, (5026), 1437 states have internal predecessors, (5026), 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) [2022-11-16 19:41:40,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:41:40,563 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;@53c7b3d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:41:40,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-16 19:41:40,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 1438 states, 1412 states have (on average 3.5594900849858355) internal successors, (5026), 1437 states have internal predecessors, (5026), 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) [2022-11-16 19:41:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:41:40,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:41:40,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:41:40,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 19:41:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:41:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 15936595, now seen corresponding path program 1 times [2022-11-16 19:41:40,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:41:40,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848676999] [2022-11-16 19:41:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:41:40,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:41:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:41:41,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:41,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848676999] [2022-11-16 19:41:41,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848676999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:41:41,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:41:41,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 19:41:41,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836616620] [2022-11-16 19:41:41,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:41:41,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:41:41,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:41:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:41:41,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:41:41,069 INFO L87 Difference]: Start difference. First operand has 1438 states, 1412 states have (on average 3.5594900849858355) internal successors, (5026), 1437 states have internal predecessors, (5026), 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) [2022-11-16 19:41:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:41,272 INFO L93 Difference]: Finished difference Result 798 states and 2325 transitions. [2022-11-16 19:41:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:41:41,284 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 [2022-11-16 19:41:41,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:41,321 INFO L225 Difference]: With dead ends: 798 [2022-11-16 19:41:41,321 INFO L226 Difference]: Without dead ends: 798 [2022-11-16 19:41:41,322 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 [2022-11-16 19:41:41,333 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:41:41,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 9 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:41:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-11-16 19:41:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2022-11-16 19:41:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 780 states have (on average 2.980769230769231) internal successors, (2325), 797 states have internal predecessors, (2325), 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) [2022-11-16 19:41:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 2325 transitions. [2022-11-16 19:41:41,456 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 2325 transitions. Word has length 4 [2022-11-16 19:41:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:41:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 2325 transitions. [2022-11-16 19:41:41,457 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) [2022-11-16 19:41:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 2325 transitions. [2022-11-16 19:41:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 19:41:41,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:41:41,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:41:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:41:41,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 19:41:41,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:41:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1264526940, now seen corresponding path program 1 times [2022-11-16 19:41:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:41:41,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673417572] [2022-11-16 19:41:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:41:41,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:41:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:41:41,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:41,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673417572] [2022-11-16 19:41:41,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673417572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:41:41,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:41:41,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:41:41,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825258314] [2022-11-16 19:41:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:41:41,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:41:41,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:41:41,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:41:41,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:41:41,761 INFO L87 Difference]: Start difference. First operand 798 states and 2325 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) [2022-11-16 19:41:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:41,940 INFO L93 Difference]: Finished difference Result 650 states and 1933 transitions. [2022-11-16 19:41:41,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:41:41,941 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 [2022-11-16 19:41:41,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:41,950 INFO L225 Difference]: With dead ends: 650 [2022-11-16 19:41:41,953 INFO L226 Difference]: Without dead ends: 650 [2022-11-16 19:41:41,956 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 [2022-11-16 19:41:41,957 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:41:41,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:41:41,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-16 19:41:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-11-16 19:41:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 644 states have (on average 3.001552795031056) internal successors, (1933), 649 states have internal predecessors, (1933), 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) [2022-11-16 19:41:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1933 transitions. [2022-11-16 19:41:42,031 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1933 transitions. Word has length 10 [2022-11-16 19:41:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:41:42,032 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1933 transitions. [2022-11-16 19:41:42,033 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) [2022-11-16 19:41:42,034 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1933 transitions. [2022-11-16 19:41:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:41:42,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:41:42,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:41:42,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:41:42,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 19:41:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:41:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 545627890, now seen corresponding path program 1 times [2022-11-16 19:41:42,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:41:42,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483729577] [2022-11-16 19:41:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:41:42,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:41:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:41:42,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:42,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483729577] [2022-11-16 19:41:42,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483729577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:41:42,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:41:42,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:41:42,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925958936] [2022-11-16 19:41:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:41:42,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:41:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:41:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:41:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:41:42,260 INFO L87 Difference]: Start difference. First operand 650 states and 1933 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) [2022-11-16 19:41:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:42,388 INFO L93 Difference]: Finished difference Result 538 states and 1628 transitions. [2022-11-16 19:41:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:41:42,389 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 [2022-11-16 19:41:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:42,393 INFO L225 Difference]: With dead ends: 538 [2022-11-16 19:41:42,393 INFO L226 Difference]: Without dead ends: 538 [2022-11-16 19:41:42,394 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 [2022-11-16 19:41:42,395 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12 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 [2022-11-16 19:41:42,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:41:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-16 19:41:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-11-16 19:41:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 535 states have (on average 3.0429906542056075) internal successors, (1628), 537 states have internal predecessors, (1628), 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) [2022-11-16 19:41:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1628 transitions. [2022-11-16 19:41:42,420 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1628 transitions. Word has length 11 [2022-11-16 19:41:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:41:42,420 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 1628 transitions. [2022-11-16 19:41:42,420 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) [2022-11-16 19:41:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1628 transitions. [2022-11-16 19:41:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 19:41:42,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:41:42,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:41:42,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:41:42,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 19:41:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:41:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 763851697, now seen corresponding path program 1 times [2022-11-16 19:41:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:41:42,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622088483] [2022-11-16 19:41:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:41:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:41:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:41:42,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:42,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622088483] [2022-11-16 19:41:42,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622088483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:41:42,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:41:42,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:41:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976839900] [2022-11-16 19:41:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:41:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:41:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:41:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:41:42,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:41:42,662 INFO L87 Difference]: Start difference. First operand 538 states and 1628 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-16 19:41:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:42,785 INFO L93 Difference]: Finished difference Result 526 states and 1607 transitions. [2022-11-16 19:41:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:41:42,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-11-16 19:41:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:42,786 INFO L225 Difference]: With dead ends: 526 [2022-11-16 19:41:42,786 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:41:42,786 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 [2022-11-16 19:41:42,787 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 71 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:41:42,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 9 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:41:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:41:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:41:42,789 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) [2022-11-16 19:41:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:41:42,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-16 19:41:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:41:42,789 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:41:42,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-16 19:41:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:41:42,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:41:42,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-16 19:41:42,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-16 19:41:42,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-16 19:41:42,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-16 19:41:42,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-16 19:41:42,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-16 19:41:42,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-16 19:41:42,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-16 19:41:42,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-16 19:41:42,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-16 19:41:42,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-16 19:41:42,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-16 19:41:42,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-16 19:41:42,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-16 19:41:42,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-16 19:41:42,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:41:42,799 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 19:41:42,805 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 19:41:42,805 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:41:42,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:41:42 BasicIcfg [2022-11-16 19:41:42,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:41:42,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:41:42,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:41:42,809 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:41:42,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:41:32" (3/4) ... [2022-11-16 19:41:42,813 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:41:42,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 19:41:42,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 19:41:42,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 19:41:42,825 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-16 19:41:42,825 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 19:41:42,825 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 19:41:42,826 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:41:42,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:41:42,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:41:42,864 INFO L158 Benchmark]: Toolchain (without parser) took 12007.86ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 71.6MB in the beginning and 67.3MB in the end (delta: 4.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,864 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:41:42,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 891.40ms. Allocated memory is still 119.5MB. Free memory was 71.4MB in the beginning and 78.3MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.38ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,865 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 119.5MB. Free memory was 76.1MB in the beginning and 74.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,866 INFO L158 Benchmark]: RCFGBuilder took 926.81ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 41.8MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,866 INFO L158 Benchmark]: TraceAbstraction took 9993.87ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 41.1MB in the beginning and 70.4MB in the end (delta: -29.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,866 INFO L158 Benchmark]: Witness Printer took 54.46ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 67.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:41:42,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 891.40ms. Allocated memory is still 119.5MB. Free memory was 71.4MB in the beginning and 78.3MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.38ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 119.5MB. Free memory was 76.1MB in the beginning and 74.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 926.81ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 41.8MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9993.87ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 41.1MB in the beginning and 70.4MB in the end (delta: -29.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 54.46ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 67.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 128 PlacesBefore, 40 PlacesAfterwards, 120 TransitionsBefore, 31 TransitionsAfterwards, 2562 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 104 TotalNumberOfCompositions, 8643 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4117, independent: 3855, independent conditional: 0, independent unconditional: 3855, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1972, independent: 1905, independent conditional: 0, independent unconditional: 1905, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1972, independent: 1857, independent conditional: 0, independent unconditional: 1857, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 115, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 661, independent: 143, independent conditional: 0, independent unconditional: 143, dependent: 519, dependent conditional: 0, dependent unconditional: 519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4117, independent: 1950, independent conditional: 0, independent unconditional: 1950, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 1972, unknown conditional: 0, unknown unconditional: 1972] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: 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, 152 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 21 mSDtfsCounter, 219 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=1438occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 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! [2022-11-16 19:41:42,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c388176-aeff-4f29-9fa3-31a517bed160/bin/utaipan-Xvt2sAort0/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