./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh --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 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 --- 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-2329fc7 [2022-12-14 13:22:11,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:22:11,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:22:11,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:22:11,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:22:11,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:22:11,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:22:11,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:22:11,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:22:11,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:22:11,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:22:11,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:22:11,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:22:11,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:22:11,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:22:11,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:22:11,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:22:11,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:22:11,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:22:11,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:22:11,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:22:11,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:22:11,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:22:11,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:22:11,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:22:11,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:22:11,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:22:11,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:22:11,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:22:11,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:22:11,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:22:11,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:22:11,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:22:11,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:22:11,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:22:11,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:22:11,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:22:11,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:22:11,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:22:11,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:22:11,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:22:11,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:22:11,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:22:11,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:22:11,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:22:11,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:22:11,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:22:11,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:22:11,920 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:22:11,920 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:22:11,920 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:22:11,920 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:22:11,920 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:22:11,920 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:22:11,921 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:22:11,921 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:22:11,921 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:22:11,921 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:22:11,921 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:22:11,921 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:22:11,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:22:11,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:22:11,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:22:11,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:22:11,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:22:11,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:22:11,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:22:11,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:22:11,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:22:11,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:22:11,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:22:11,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:22:11,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:22:11,926 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_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 [2022-12-14 13:22:12,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:22:12,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:22:12,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:22:12,132 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:22:12,133 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:22:12,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-12-14 13:22:14,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:22:14,886 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:22:14,886 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-12-14 13:22:14,900 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/data/8c33815f3/fb176ce2a4914f77a63ca9841b829846/FLAGcab2ee1b4 [2022-12-14 13:22:15,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/data/8c33815f3/fb176ce2a4914f77a63ca9841b829846 [2022-12-14 13:22:15,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:22:15,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:22:15,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:22:15,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:22:15,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:22:15,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eb0aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15, skipping insertion in model container [2022-12-14 13:22:15,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:22:15,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:22:15,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-12-14 13:22:15,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:22:15,659 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:22:15,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-12-14 13:22:15,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 13:22:15,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 13:22:15,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:22:15,767 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:22:15,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15 WrapperNode [2022-12-14 13:22:15,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:22:15,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:22:15,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:22:15,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:22:15,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,826 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 278 [2022-12-14 13:22:15,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:22:15,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:22:15,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:22:15,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:22:15,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:22:15,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:22:15,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:22:15,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:22:15,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (1/1) ... [2022-12-14 13:22:15,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:22:15,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:22:15,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:22:15,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:22:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:22:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 13:22:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:22:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:22:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:22:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 13:22:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 13:22:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 13:22:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 13:22:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 13:22:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 13:22:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 13:22:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 13:22:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:22:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 13:22:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:22:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:22:15,938 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:22:16,063 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:22:16,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:22:16,452 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:22:16,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:22:16,680 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:22:16,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:16 BoogieIcfgContainer [2022-12-14 13:22:16,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:22:16,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:22:16,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:22:16,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:22:16,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:22:15" (1/3) ... [2022-12-14 13:22:16,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f1ed68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:22:16, skipping insertion in model container [2022-12-14 13:22:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:15" (2/3) ... [2022-12-14 13:22:16,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f1ed68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:22:16, skipping insertion in model container [2022-12-14 13:22:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:16" (3/3) ... [2022-12-14 13:22:16,691 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2022-12-14 13:22:16,700 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 13:22:16,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:22:16,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 13:22:16,710 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:22:16,765 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 13:22:16,791 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:22:16,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 162 transitions, 344 flow [2022-12-14 13:22:16,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 162 transitions, 344 flow [2022-12-14 13:22:16,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions, 344 flow [2022-12-14 13:22:16,867 INFO L130 PetriNetUnfolder]: 2/158 cut-off events. [2022-12-14 13:22:16,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 13:22:16,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 2/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-12-14 13:22:16,876 INFO L119 LiptonReduction]: Number of co-enabled transitions 4268 [2022-12-14 13:22:23,296 INFO L134 LiptonReduction]: Checked pairs total: 15482 [2022-12-14 13:22:23,297 INFO L136 LiptonReduction]: Total number of compositions: 137 [2022-12-14 13:22:23,302 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 41 transitions, 102 flow [2022-12-14 13:22:23,594 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11518 states, 11438 states have (on average 4.40374191292184) internal successors, (50370), 11517 states have internal predecessors, (50370), 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) [2022-12-14 13:22:23,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:22:23,621 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;@1cbcdcff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:22:23,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-14 13:22:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 11518 states, 11438 states have (on average 4.40374191292184) internal successors, (50370), 11517 states have internal predecessors, (50370), 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) [2022-12-14 13:22:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:22:23,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:23,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:22:23,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 13:22:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 24924933, now seen corresponding path program 1 times [2022-12-14 13:22:23,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:23,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777515279] [2022-12-14 13:22:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:23,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:23,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777515279] [2022-12-14 13:22:23,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777515279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:23,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:23,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:22:23,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568665904] [2022-12-14 13:22:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:23,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:23,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:23,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:23,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:23,945 INFO L87 Difference]: Start difference. First operand has 11518 states, 11438 states have (on average 4.40374191292184) internal successors, (50370), 11517 states have internal predecessors, (50370), 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) [2022-12-14 13:22:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:24,191 INFO L93 Difference]: Finished difference Result 6498 states and 24137 transitions. [2022-12-14 13:22:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:24,193 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 [2022-12-14 13:22:24,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:24,240 INFO L225 Difference]: With dead ends: 6498 [2022-12-14 13:22:24,241 INFO L226 Difference]: Without dead ends: 6498 [2022-12-14 13:22:24,241 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 [2022-12-14 13:22:24,244 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:24,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:22:24,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-12-14 13:22:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 6498. [2022-12-14 13:22:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6498 states, 6434 states have (on average 3.7514765309294376) internal successors, (24137), 6497 states have internal predecessors, (24137), 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) [2022-12-14 13:22:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6498 states to 6498 states and 24137 transitions. [2022-12-14 13:22:24,498 INFO L78 Accepts]: Start accepts. Automaton has 6498 states and 24137 transitions. Word has length 4 [2022-12-14 13:22:24,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:24,498 INFO L495 AbstractCegarLoop]: Abstraction has 6498 states and 24137 transitions. [2022-12-14 13:22:24,498 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) [2022-12-14 13:22:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 6498 states and 24137 transitions. [2022-12-14 13:22:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:22:24,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:24,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:24,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:22:24,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 13:22:24,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:24,500 INFO L85 PathProgramCache]: Analyzing trace with hash -210495154, now seen corresponding path program 1 times [2022-12-14 13:22:24,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:24,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127592142] [2022-12-14 13:22:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:24,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:24,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127592142] [2022-12-14 13:22:24,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127592142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:24,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:24,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056746572] [2022-12-14 13:22:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:24,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:22:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:22:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:22:24,579 INFO L87 Difference]: Start difference. First operand 6498 states and 24137 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) [2022-12-14 13:22:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:24,793 INFO L93 Difference]: Finished difference Result 4550 states and 17207 transitions. [2022-12-14 13:22:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:22:24,794 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 [2022-12-14 13:22:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:24,814 INFO L225 Difference]: With dead ends: 4550 [2022-12-14 13:22:24,814 INFO L226 Difference]: Without dead ends: 4550 [2022-12-14 13:22:24,815 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 [2022-12-14 13:22:24,816 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 42 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:24,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:22:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2022-12-14 13:22:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4550. [2022-12-14 13:22:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4550 states, 4536 states have (on average 3.7934303350970016) internal successors, (17207), 4549 states have internal predecessors, (17207), 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) [2022-12-14 13:22:25,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 4550 states and 17207 transitions. [2022-12-14 13:22:25,000 INFO L78 Accepts]: Start accepts. Automaton has 4550 states and 17207 transitions. Word has length 10 [2022-12-14 13:22:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,000 INFO L495 AbstractCegarLoop]: Abstraction has 4550 states and 17207 transitions. [2022-12-14 13:22:25,001 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) [2022-12-14 13:22:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4550 states and 17207 transitions. [2022-12-14 13:22:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:22:25,002 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:22:25,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 13:22:25,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2064462737, now seen corresponding path program 1 times [2022-12-14 13:22:25,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312624600] [2022-12-14 13:22:25,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312624600] [2022-12-14 13:22:25,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312624600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:25,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860230171] [2022-12-14 13:22:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:22:25,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:22:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:22:25,074 INFO L87 Difference]: Start difference. First operand 4550 states and 17207 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) [2022-12-14 13:22:25,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,268 INFO L93 Difference]: Finished difference Result 3416 states and 13002 transitions. [2022-12-14 13:22:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:22:25,269 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 [2022-12-14 13:22:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,289 INFO L225 Difference]: With dead ends: 3416 [2022-12-14 13:22:25,289 INFO L226 Difference]: Without dead ends: 3416 [2022-12-14 13:22:25,290 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 [2022-12-14 13:22:25,291 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 9 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:22:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2022-12-14 13:22:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 3416. [2022-12-14 13:22:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3406 states have (on average 3.8173810921902525) internal successors, (13002), 3415 states have internal predecessors, (13002), 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) [2022-12-14 13:22:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 13002 transitions. [2022-12-14 13:22:25,360 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 13002 transitions. Word has length 11 [2022-12-14 13:22:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,360 INFO L495 AbstractCegarLoop]: Abstraction has 3416 states and 13002 transitions. [2022-12-14 13:22:25,360 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) [2022-12-14 13:22:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 13002 transitions. [2022-12-14 13:22:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 13:22:25,380 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:22:25,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 13:22:25,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,381 INFO L85 PathProgramCache]: Analyzing trace with hash 781032369, now seen corresponding path program 1 times [2022-12-14 13:22:25,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932819606] [2022-12-14 13:22:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932819606] [2022-12-14 13:22:25,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932819606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:22:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389912928] [2022-12-14 13:22:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:22:25,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:22:25,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:22:25,521 INFO L87 Difference]: Start difference. First operand 3416 states and 13002 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) [2022-12-14 13:22:25,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,723 INFO L93 Difference]: Finished difference Result 3182 states and 12363 transitions. [2022-12-14 13:22:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:22:25,723 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 [2022-12-14 13:22:25,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,735 INFO L225 Difference]: With dead ends: 3182 [2022-12-14 13:22:25,736 INFO L226 Difference]: Without dead ends: 3182 [2022-12-14 13:22:25,736 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 [2022-12-14 13:22:25,737 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 51 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 12 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:22:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2022-12-14 13:22:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 3182. [2022-12-14 13:22:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 3178 states have (on average 3.8901825047199496) internal successors, (12363), 3181 states have internal predecessors, (12363), 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) [2022-12-14 13:22:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 12363 transitions. [2022-12-14 13:22:25,823 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 12363 transitions. Word has length 18 [2022-12-14 13:22:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,824 INFO L495 AbstractCegarLoop]: Abstraction has 3182 states and 12363 transitions. [2022-12-14 13:22:25,824 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) [2022-12-14 13:22:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 12363 transitions. [2022-12-14 13:22:25,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 13:22:25,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:22:25,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 13:22:25,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1489935422, now seen corresponding path program 1 times [2022-12-14 13:22:25,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020192561] [2022-12-14 13:22:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020192561] [2022-12-14 13:22:25,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020192561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:22:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597670994] [2022-12-14 13:22:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:22:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:22:25,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:22:25,965 INFO L87 Difference]: Start difference. First operand 3182 states and 12363 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-12-14 13:22:26,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:26,187 INFO L93 Difference]: Finished difference Result 3166 states and 12335 transitions. [2022-12-14 13:22:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:22:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2022-12-14 13:22:26,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:26,188 INFO L225 Difference]: With dead ends: 3166 [2022-12-14 13:22:26,188 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:22:26,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:22:26,189 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:26,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 12 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:22:26,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:22:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:22:26,189 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) [2022-12-14 13:22:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:22:26,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-12-14 13:22:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:26,190 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:22:26,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-12-14 13:22:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:22:26,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:22:26,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-14 13:22:26,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-14 13:22:26,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-14 13:22:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-14 13:22:26,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-14 13:22:26,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:22:26,196 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 13:22:26,200 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:22:26,200 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:22:26,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:22:26 BasicIcfg [2022-12-14 13:22:26,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:22:26,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:22:26,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:22:26,203 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:22:26,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:16" (3/4) ... [2022-12-14 13:22:26,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:22:26,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-14 13:22:26,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-14 13:22:26,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-14 13:22:26,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-14 13:22:26,212 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-12-14 13:22:26,212 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 13:22:26,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 13:22:26,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 13:22:26,242 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:22:26,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:22:26,243 INFO L158 Benchmark]: Toolchain (without parser) took 10971.22ms. Allocated memory was 184.5MB in the beginning and 327.2MB in the end (delta: 142.6MB). Free memory was 143.6MB in the beginning and 140.5MB in the end (delta: 3.1MB). Peak memory consumption was 147.6MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,243 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 148.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:22:26,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.93ms. Allocated memory is still 184.5MB. Free memory was 143.6MB in the beginning and 111.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.26ms. Allocated memory is still 184.5MB. Free memory was 111.1MB in the beginning and 106.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,244 INFO L158 Benchmark]: Boogie Preprocessor took 37.46ms. Allocated memory is still 184.5MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,245 INFO L158 Benchmark]: RCFGBuilder took 817.79ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 103.9MB in the beginning and 159.8MB in the end (delta: -55.9MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,245 INFO L158 Benchmark]: TraceAbstraction took 9517.17ms. Allocated memory was 222.3MB in the beginning and 327.2MB in the end (delta: 104.9MB). Free memory was 158.8MB in the beginning and 143.6MB in the end (delta: 15.1MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,245 INFO L158 Benchmark]: Witness Printer took 39.80ms. Allocated memory is still 327.2MB. Free memory was 143.6MB in the beginning and 140.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:22:26,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 148.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.93ms. Allocated memory is still 184.5MB. Free memory was 143.6MB in the beginning and 111.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.26ms. Allocated memory is still 184.5MB. Free memory was 111.1MB in the beginning and 106.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.46ms. Allocated memory is still 184.5MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 817.79ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 103.9MB in the beginning and 159.8MB in the end (delta: -55.9MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9517.17ms. Allocated memory was 222.3MB in the beginning and 327.2MB in the end (delta: 104.9MB). Free memory was 158.8MB in the beginning and 143.6MB in the end (delta: 15.1MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. * Witness Printer took 39.80ms. Allocated memory is still 327.2MB. Free memory was 143.6MB in the beginning and 140.5MB 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: 6.5s, 173 PlacesBefore, 53 PlacesAfterwards, 162 TransitionsBefore, 41 TransitionsAfterwards, 4268 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 137 TotalNumberOfCompositions, 15482 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6653, independent: 6296, independent conditional: 0, independent unconditional: 6296, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3076, independent: 2966, independent conditional: 0, independent unconditional: 2966, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3076, independent: 2869, independent conditional: 0, independent unconditional: 2869, dependent: 207, dependent conditional: 0, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 207, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1091, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 980, dependent conditional: 0, dependent unconditional: 980, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6653, independent: 3330, independent conditional: 0, independent unconditional: 3330, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 3076, unknown conditional: 0, unknown unconditional: 3076] , Statistics on independence cache: Total cache size (in pairs): 435, Positive cache size: 381, Positive conditional cache size: 0, Positive unconditional cache size: 381, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, 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: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 857]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 857]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 908]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 908]: 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 9 procedures, 206 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 252 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 18 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11518occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 13:22:26,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cc6ffb-49c5-4246-87ca-8c9054842356/bin/utaipan-gh47qXpMRh/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