./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036.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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- 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 10:58:46,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:58:46,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:58:46,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:58:46,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:58:46,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:58:46,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:58:46,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:58:46,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:58:46,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:58:46,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:58:46,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:58:46,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:58:46,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:58:46,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:58:46,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:58:46,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:58:46,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:58:46,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:58:46,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:58:46,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:58:46,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:58:46,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:58:46,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:58:46,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:58:46,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:58:46,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:58:46,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:58:46,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:58:46,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:58:46,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:58:46,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:58:46,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:58:46,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:58:46,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:58:46,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:58:46,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:58:46,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:58:46,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:58:46,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:58:46,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:58:46,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:58:46,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:58:46,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:58:46,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:58:46,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:58:46,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:58:46,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:58:46,945 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:58:46,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:58:46,945 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:58:46,946 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:58:46,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:58:46,947 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:58:46,947 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:58:46,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:58:46,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:58:46,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:58:46,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:58:46,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:58:46,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:58:46,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:58:46,950 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:58:46,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:58:46,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:58:46,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:58:46,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:58:46,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:58:46,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:58:46,951 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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2022-12-14 10:58:47,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:58:47,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:58:47,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:58:47,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:58:47,153 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:58:47,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/safe036.i [2022-12-14 10:58:49,794 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:58:49,992 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:58:49,992 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/sv-benchmarks/c/pthread-wmm/safe036.i [2022-12-14 10:58:50,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/data/b79c32f38/7a0b8a71e2dc47b2b7315770e523bdfc/FLAG42e48a8ca [2022-12-14 10:58:50,016 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/data/b79c32f38/7a0b8a71e2dc47b2b7315770e523bdfc [2022-12-14 10:58:50,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:58:50,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:58:50,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:58:50,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:58:50,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:58:50,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31333751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50, skipping insertion in model container [2022-12-14 10:58:50,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:58:50,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:58:50,194 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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-12-14 10:58:50,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:58:50,330 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:58:50,342 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_9f483f53-c36d-4e6e-81ac-3cc703121c7e/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-12-14 10:58:50,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:58:50,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:58:50,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:58:50,406 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:58:50,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50 WrapperNode [2022-12-14 10:58:50,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:58:50,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:58:50,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:58:50,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:58:50,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,445 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 10:58:50,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:58:50,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:58:50,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:58:50,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:58:50,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:58:50,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:58:50,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:58:50,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:58:50,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (1/1) ... [2022-12-14 10:58:50,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:58:50,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:58:50,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:58:50,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:58:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 10:58:50,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 10:58:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 10:58:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 10:58:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:58:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 10:58:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:58:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:58:50,534 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 10:58:50,648 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:58:50,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:58:50,784 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:58:50,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:58:50,807 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:58:50,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:58:50 BoogieIcfgContainer [2022-12-14 10:58:50,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:58:50,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:58:50,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:58:50,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:58:50,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:58:50" (1/3) ... [2022-12-14 10:58:50,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d648f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:58:50, skipping insertion in model container [2022-12-14 10:58:50,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:58:50" (2/3) ... [2022-12-14 10:58:50,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d648f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:58:50, skipping insertion in model container [2022-12-14 10:58:50,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:58:50" (3/3) ... [2022-12-14 10:58:50,819 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-12-14 10:58:50,827 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 10:58:50,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:58:50,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 10:58:50,836 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:58:50,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 10:58:50,915 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:58:50,928 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 166 flow [2022-12-14 10:58:50,931 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 166 flow [2022-12-14 10:58:50,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2022-12-14 10:58:50,978 INFO L130 PetriNetUnfolder]: 2/76 cut-off events. [2022-12-14 10:58:50,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 10:58:50,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-14 10:58:50,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 1168 [2022-12-14 10:58:52,501 INFO L134 LiptonReduction]: Checked pairs total: 3013 [2022-12-14 10:58:52,501 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-12-14 10:58:52,509 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 19 transitions, 48 flow [2022-12-14 10:58:52,530 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:58:52,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:58:52,554 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;@51466df9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:58:52,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 10:58:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:58:52,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:58:52,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:58:52,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:58:52,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-14 10:58:52,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:58:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash 8861849, now seen corresponding path program 1 times [2022-12-14 10:58:52,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:58:52,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903965623] [2022-12-14 10:58:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:58:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:52,739 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 10:58:52,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:58:52,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903965623] [2022-12-14 10:58:52,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903965623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:58:52,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:58:52,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:58:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648287977] [2022-12-14 10:58:52,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:58:52,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:58:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:58:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:58:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:58:52,763 INFO L87 Difference]: Start difference. First operand has 119 states, 111 states have (on average 2.72972972972973) internal successors, (303), 118 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:58:52,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:58:52,794 INFO L93 Difference]: Finished difference Result 84 states and 182 transitions. [2022-12-14 10:58:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:58:52,797 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 10:58:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:58:52,804 INFO L225 Difference]: With dead ends: 84 [2022-12-14 10:58:52,805 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 10:58:52,805 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 10:58:52,808 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:58:52,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:58:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 10:58:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-12-14 10:58:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 2.246913580246914) internal successors, (182), 83 states have internal predecessors, (182), 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 10:58:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 182 transitions. [2022-12-14 10:58:52,837 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 182 transitions. Word has length 4 [2022-12-14 10:58:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:58:52,837 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 182 transitions. [2022-12-14 10:58:52,837 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 10:58:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 182 transitions. [2022-12-14 10:58:52,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:58:52,837 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:58:52,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:58:52,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:58:52,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-14 10:58:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:58:52,838 INFO L85 PathProgramCache]: Analyzing trace with hash 274716133, now seen corresponding path program 1 times [2022-12-14 10:58:52,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:58:52,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832049990] [2022-12-14 10:58:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:52,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:58:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:52,885 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 10:58:52,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:58:52,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832049990] [2022-12-14 10:58:52,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832049990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:58:52,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:58:52,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:58:52,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173369573] [2022-12-14 10:58:52,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:58:52,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:58:52,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:58:52,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:58:52,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:58:52,887 INFO L87 Difference]: Start difference. First operand 84 states and 182 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 10:58:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:58:52,912 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2022-12-14 10:58:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:58:52,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 10:58:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:58:52,912 INFO L225 Difference]: With dead ends: 43 [2022-12-14 10:58:52,913 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 10:58:52,913 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 10:58:52,913 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:58:52,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:58:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 10:58:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 10:58:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 42 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:58:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 68 transitions. [2022-12-14 10:58:52,917 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 68 transitions. Word has length 5 [2022-12-14 10:58:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:58:52,917 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 68 transitions. [2022-12-14 10:58:52,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 10:58:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2022-12-14 10:58:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 10:58:52,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:58:52,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:58:52,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:58:52,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-14 10:58:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:58:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash -664364110, now seen corresponding path program 1 times [2022-12-14 10:58:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:58:52,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482511007] [2022-12-14 10:58:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:58:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:52,981 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 10:58:52,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:58:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482511007] [2022-12-14 10:58:52,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482511007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:58:52,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:58:52,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:58:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520617454] [2022-12-14 10:58:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:58:52,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:58:52,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:58:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:58:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:58:52,984 INFO L87 Difference]: Start difference. First operand 43 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:58:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:58:53,005 INFO L93 Difference]: Finished difference Result 25 states and 38 transitions. [2022-12-14 10:58:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:58:53,005 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 10:58:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:58:53,005 INFO L225 Difference]: With dead ends: 25 [2022-12-14 10:58:53,006 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:58:53,006 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 10:58:53,007 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:58:53,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:58:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:58:53,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:58:53,009 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 10:58:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:58:53,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-12-14 10:58:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:58:53,009 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:58:53,009 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 10:58:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:58:53,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:58:53,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-14 10:58:53,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-14 10:58:53,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-14 10:58:53,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-14 10:58:53,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-14 10:58:53,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-14 10:58:53,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-14 10:58:53,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-14 10:58:53,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-14 10:58:53,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-14 10:58:53,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:58:53,017 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 10:58:53,022 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 10:58:53,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:58:53,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:58:53 BasicIcfg [2022-12-14 10:58:53,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:58:53,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:58:53,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:58:53,025 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:58:53,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:58:50" (3/4) ... [2022-12-14 10:58:53,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:58:53,032 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-14 10:58:53,032 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-14 10:58:53,036 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 10:58:53,036 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 10:58:53,036 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 10:58:53,036 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:58:53,067 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:58:53,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:58:53,067 INFO L158 Benchmark]: Toolchain (without parser) took 3047.53ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 88.6MB in the beginning and 111.4MB in the end (delta: -22.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,068 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:58:53,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.80ms. Allocated memory is still 123.7MB. Free memory was 88.5MB in the beginning and 66.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.96ms. Allocated memory is still 123.7MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,069 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 123.7MB. Free memory was 64.0MB in the beginning and 62.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,069 INFO L158 Benchmark]: RCFGBuilder took 342.53ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 62.5MB in the beginning and 147.6MB in the end (delta: -85.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,070 INFO L158 Benchmark]: TraceAbstraction took 2211.59ms. Allocated memory is still 180.4MB. Free memory was 146.8MB in the beginning and 114.5MB in the end (delta: 32.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,070 INFO L158 Benchmark]: Witness Printer took 42.42ms. Allocated memory is still 180.4MB. Free memory was 114.5MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:58:53,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.80ms. Allocated memory is still 123.7MB. Free memory was 88.5MB in the beginning and 66.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.96ms. Allocated memory is still 123.7MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.02ms. Allocated memory is still 123.7MB. Free memory was 64.0MB in the beginning and 62.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.53ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 62.5MB in the beginning and 147.6MB in the end (delta: -85.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2211.59ms. Allocated memory is still 180.4MB. Free memory was 146.8MB in the beginning and 114.5MB in the end (delta: 32.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 42.42ms. Allocated memory is still 180.4MB. Free memory was 114.5MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 83 PlacesBefore, 25 PlacesAfterwards, 78 TransitionsBefore, 19 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 3013 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1776, independent: 1639, independent conditional: 0, independent unconditional: 1639, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 877, independent: 843, independent conditional: 0, independent unconditional: 843, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 877, independent: 832, independent conditional: 0, independent unconditional: 832, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1776, independent: 796, independent conditional: 0, independent unconditional: 796, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 877, unknown conditional: 0, unknown unconditional: 877] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, 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: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 97 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 6 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 10:58:53,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f483f53-c36d-4e6e-81ac-3cc703121c7e/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