./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 --- 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-38b53e6 [2022-11-25 17:29:19,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:29:19,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:29:20,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:29:20,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:29:20,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:29:20,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:29:20,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:29:20,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:29:20,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:29:20,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:29:20,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:29:20,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:29:20,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:29:20,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:29:20,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:29:20,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:29:20,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:29:20,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:29:20,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:29:20,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:29:20,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:29:20,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:29:20,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:29:20,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:29:20,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:29:20,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:29:20,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:29:20,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:29:20,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:29:20,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:29:20,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:29:20,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:29:20,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:29:20,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:29:20,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:29:20,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:29:20,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:29:20,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:29:20,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:29:20,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:29:20,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:29:20,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:29:20,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:29:20,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:29:20,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:29:20,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:29:20,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:29:20,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:29:20,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:29:20,072 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:29:20,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:29:20,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:29:20,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:29:20,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:29:20,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:29:20,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:29:20,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:29:20,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:29:20,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:29:20,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:29:20,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:29:20,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:29:20,075 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:29:20,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:29:20,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:29:20,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:29:20,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:29:20,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:29:20,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:29:20,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:29:20,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:29:20,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:29:20,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:29:20,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:29:20,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:29:20,077 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:29:20,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:29:20,078 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 [2022-11-25 17:29:20,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:29:20,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:29:20,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:29:20,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:29:20,397 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:29:20,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe028_power.i [2022-11-25 17:29:23,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:29:23,717 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:29:23,718 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/sv-benchmarks/c/pthread-wmm/safe028_power.i [2022-11-25 17:29:23,730 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/data/92da44bc1/b6e09e8470bd49c2b4852a1ca9d990a9/FLAG4cf973aba [2022-11-25 17:29:23,753 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/data/92da44bc1/b6e09e8470bd49c2b4852a1ca9d990a9 [2022-11-25 17:29:23,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:29:23,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:29:23,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:23,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:29:23,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:29:23,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:23" (1/1) ... [2022-11-25 17:29:23,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411d79d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:23, skipping insertion in model container [2022-11-25 17:29:23,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:23" (1/1) ... [2022-11-25 17:29:23,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:29:23,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:29:24,013 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_452230ab-3523-4cc8-afd7-202ffc8af545/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2022-11-25 17:29:24,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:24,323 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:29:24,343 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_452230ab-3523-4cc8-afd7-202ffc8af545/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2022-11-25 17:29:24,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:29:24,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:29:24,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:24,500 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:29:24,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24 WrapperNode [2022-11-25 17:29:24,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:24,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:24,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:29:24,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:29:24,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,581 INFO L138 Inliner]: procedures = 176, calls = 77, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 179 [2022-11-25 17:29:24,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:24,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:29:24,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:29:24,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:29:24,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:29:24,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:29:24,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:29:24,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:29:24,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (1/1) ... [2022-11-25 17:29:24,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:29:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:24,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:29:24,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:29:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:29:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:29:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:29:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:29:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:29:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:29:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:29:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:29:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:29:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:29:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:29:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:29:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:29:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:29:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:29:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:29:24,766 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:29:24,993 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:29:24,995 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:29:25,780 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:29:26,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:29:26,192 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:29:26,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:26 BoogieIcfgContainer [2022-11-25 17:29:26,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:29:26,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:29:26,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:29:26,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:29:26,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:29:23" (1/3) ... [2022-11-25 17:29:26,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fca532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:29:26, skipping insertion in model container [2022-11-25 17:29:26,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:24" (2/3) ... [2022-11-25 17:29:26,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fca532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:29:26, skipping insertion in model container [2022-11-25 17:29:26,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:26" (3/3) ... [2022-11-25 17:29:26,207 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_power.i [2022-11-25 17:29:26,214 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:29:26,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:29:26,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:29:26,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:29:26,301 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:29:26,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-11-25 17:29:26,427 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-25 17:29:26,428 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:29:26,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 17:29:26,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 136 transitions, 287 flow [2022-11-25 17:29:26,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 133 transitions, 275 flow [2022-11-25 17:29:26,443 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:29:26,456 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 133 transitions, 275 flow [2022-11-25 17:29:26,459 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 133 transitions, 275 flow [2022-11-25 17:29:26,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 275 flow [2022-11-25 17:29:26,492 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-25 17:29:26,492 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:29:26,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 17:29:26,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 2352 [2022-11-25 17:29:41,307 INFO L134 LiptonReduction]: Checked pairs total: 7820 [2022-11-25 17:29:41,307 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-25 17:29:41,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:29:41,331 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=PETRI_NET, 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;@762d9d30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:29:41,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 17:29:41,336 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 17:29:41,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:29:41,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:41,337 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:29:41,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:29:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash 27771803, now seen corresponding path program 1 times [2022-11-25 17:29:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:41,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363462393] [2022-11-25 17:29:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:41,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:41,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:41,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363462393] [2022-11-25 17:29:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363462393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:41,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:41,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:29:41,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752365244] [2022-11-25 17:29:41,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:41,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:29:41,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:29:41,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:29:41,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2022-11-25 17:29:41,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:41,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:41,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2022-11-25 17:29:41,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:42,423 INFO L130 PetriNetUnfolder]: 929/1459 cut-off events. [2022-11-25 17:29:42,424 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-25 17:29:42,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2964 conditions, 1459 events. 929/1459 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6825 event pairs, 294 based on Foata normal form. 0/1177 useless extension candidates. Maximal degree in co-relation 2953. Up to 1100 conditions per place. [2022-11-25 17:29:42,436 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 36 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2022-11-25 17:29:42,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 177 flow [2022-11-25 17:29:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:29:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:29:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2022-11-25 17:29:42,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5019455252918288 [2022-11-25 17:29:42,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2022-11-25 17:29:42,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2022-11-25 17:29:42,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:42,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2022-11-25 17:29:42,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:42,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:42,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:42,469 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 387 transitions. [2022-11-25 17:29:42,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 177 flow [2022-11-25 17:29:42,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:29:42,475 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2022-11-25 17:29:42,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2022-11-25 17:29:42,481 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-11-25 17:29:42,481 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2022-11-25 17:29:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:42,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:42,482 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:42,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:29:42,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:29:42,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2124242773, now seen corresponding path program 1 times [2022-11-25 17:29:42,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:42,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116105465] [2022-11-25 17:29:42,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:42,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:42,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:42,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116105465] [2022-11-25 17:29:42,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116105465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:42,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:42,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:29:42,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27240812] [2022-11-25 17:29:42,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:42,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:29:42,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:42,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:29:42,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:29:42,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2022-11-25 17:29:42,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:42,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:42,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2022-11-25 17:29:42,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:43,154 INFO L130 PetriNetUnfolder]: 727/1133 cut-off events. [2022-11-25 17:29:43,154 INFO L131 PetriNetUnfolder]: For 111/125 co-relation queries the response was YES. [2022-11-25 17:29:43,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2776 conditions, 1133 events. 727/1133 cut-off events. For 111/125 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4816 event pairs, 246 based on Foata normal form. 116/1127 useless extension candidates. Maximal degree in co-relation 2765. Up to 773 conditions per place. [2022-11-25 17:29:43,163 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 33 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2022-11-25 17:29:43,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 184 flow [2022-11-25 17:29:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:29:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:29:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2022-11-25 17:29:43,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4785992217898833 [2022-11-25 17:29:43,167 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2022-11-25 17:29:43,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2022-11-25 17:29:43,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:43,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2022-11-25 17:29:43,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,173 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,173 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 4 states and 492 transitions. [2022-11-25 17:29:43,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 184 flow [2022-11-25 17:29:43,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:29:43,179 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 84 flow [2022-11-25 17:29:43,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2022-11-25 17:29:43,181 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-11-25 17:29:43,181 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 84 flow [2022-11-25 17:29:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:43,182 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:43,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:29:43,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:29:43,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1426927763, now seen corresponding path program 1 times [2022-11-25 17:29:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:43,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661387095] [2022-11-25 17:29:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:43,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:43,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:43,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661387095] [2022-11-25 17:29:43,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661387095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:43,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:43,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:29:43,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452805823] [2022-11-25 17:29:43,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:29:43,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:29:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:29:43,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2022-11-25 17:29:43,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:43,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2022-11-25 17:29:43,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:43,755 INFO L130 PetriNetUnfolder]: 576/894 cut-off events. [2022-11-25 17:29:43,756 INFO L131 PetriNetUnfolder]: For 332/332 co-relation queries the response was YES. [2022-11-25 17:29:43,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2171 conditions, 894 events. 576/894 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3656 event pairs, 218 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 2159. Up to 369 conditions per place. [2022-11-25 17:29:43,763 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 41 selfloop transitions, 7 changer transitions 3/52 dead transitions. [2022-11-25 17:29:43,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 52 transitions, 252 flow [2022-11-25 17:29:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:29:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:29:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2022-11-25 17:29:43,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49221789883268485 [2022-11-25 17:29:43,765 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2022-11-25 17:29:43,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2022-11-25 17:29:43,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:43,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2022-11-25 17:29:43,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,771 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,772 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 84 flow. Second operand 4 states and 506 transitions. [2022-11-25 17:29:43,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 52 transitions, 252 flow [2022-11-25 17:29:43,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 52 transitions, 247 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:29:43,774 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 105 flow [2022-11-25 17:29:43,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2022-11-25 17:29:43,776 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-11-25 17:29:43,776 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 105 flow [2022-11-25 17:29:43,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:43,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:43,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:43,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:29:43,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:29:43,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1061559548, now seen corresponding path program 1 times [2022-11-25 17:29:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:43,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037800488] [2022-11-25 17:29:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:44,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:44,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037800488] [2022-11-25 17:29:44,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037800488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:44,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:44,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:29:44,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860633726] [2022-11-25 17:29:44,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:44,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:29:44,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:29:44,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:29:44,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2022-11-25 17:29:44,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:44,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:44,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2022-11-25 17:29:44,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:44,416 INFO L130 PetriNetUnfolder]: 556/858 cut-off events. [2022-11-25 17:29:44,416 INFO L131 PetriNetUnfolder]: For 681/681 co-relation queries the response was YES. [2022-11-25 17:29:44,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2350 conditions, 858 events. 556/858 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3493 event pairs, 218 based on Foata normal form. 12/860 useless extension candidates. Maximal degree in co-relation 2337. Up to 369 conditions per place. [2022-11-25 17:29:44,419 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2022-11-25 17:29:44,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 231 flow [2022-11-25 17:29:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:29:44,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:29:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 613 transitions. [2022-11-25 17:29:44,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47704280155642026 [2022-11-25 17:29:44,422 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 613 transitions. [2022-11-25 17:29:44,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 613 transitions. [2022-11-25 17:29:44,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:44,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 613 transitions. [2022-11-25 17:29:44,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:44,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:44,429 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:44,429 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 105 flow. Second operand 5 states and 613 transitions. [2022-11-25 17:29:44,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 231 flow [2022-11-25 17:29:44,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 46 transitions, 207 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-25 17:29:44,431 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-11-25 17:29:44,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-11-25 17:29:44,432 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2022-11-25 17:29:44,432 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2022-11-25 17:29:44,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:44,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-25 17:29:44,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-25 17:29:44,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-25 17:29:44,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-25 17:29:44,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-25 17:29:44,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-25 17:29:44,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-25 17:29:44,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-25 17:29:44,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-25 17:29:44,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-25 17:29:44,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-25 17:29:44,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-25 17:29:44,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-25 17:29:44,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-25 17:29:44,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-25 17:29:44,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:29:44,440 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 17:29:44,445 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:29:44,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:29:44,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:29:44 BasicIcfg [2022-11-25 17:29:44,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:29:44,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:29:44,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:29:44,450 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:29:44,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:26" (3/4) ... [2022-11-25 17:29:44,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:29:44,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 17:29:44,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 17:29:44,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 17:29:44,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2022-11-25 17:29:44,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 17:29:44,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:29:44,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:29:44,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:29:44,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:29:44,522 INFO L158 Benchmark]: Toolchain (without parser) took 20764.88ms. Allocated memory was 207.6MB in the beginning and 306.2MB in the end (delta: 98.6MB). Free memory was 162.9MB in the beginning and 139.2MB in the end (delta: 23.7MB). Peak memory consumption was 124.0MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,522 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:44,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.33ms. Allocated memory is still 207.6MB. Free memory was 162.9MB in the beginning and 134.2MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.32ms. Allocated memory is still 207.6MB. Free memory was 134.2MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,523 INFO L158 Benchmark]: Boogie Preprocessor took 55.92ms. Allocated memory is still 207.6MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,523 INFO L158 Benchmark]: RCFGBuilder took 1555.58ms. Allocated memory is still 207.6MB. Free memory was 129.3MB in the beginning and 121.2MB in the end (delta: 8.1MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,524 INFO L158 Benchmark]: TraceAbstraction took 18251.55ms. Allocated memory was 207.6MB in the beginning and 306.2MB in the end (delta: 98.6MB). Free memory was 120.2MB in the beginning and 142.3MB in the end (delta: -22.2MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,527 INFO L158 Benchmark]: Witness Printer took 71.10ms. Allocated memory is still 306.2MB. Free memory was 142.3MB in the beginning and 139.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:29:44,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.33ms. Allocated memory is still 207.6MB. Free memory was 162.9MB in the beginning and 134.2MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.32ms. Allocated memory is still 207.6MB. Free memory was 134.2MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.92ms. Allocated memory is still 207.6MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1555.58ms. Allocated memory is still 207.6MB. Free memory was 129.3MB in the beginning and 121.2MB in the end (delta: 8.1MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 18251.55ms. Allocated memory was 207.6MB in the beginning and 306.2MB in the end (delta: 98.6MB). Free memory was 120.2MB in the beginning and 142.3MB in the end (delta: -22.2MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. * Witness Printer took 71.10ms. Allocated memory is still 306.2MB. Free memory was 142.3MB in the beginning and 139.2MB 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: 14.8s, 141 PlacesBefore, 35 PlacesAfterwards, 133 TransitionsBefore, 26 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 7820 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2942, independent: 2665, independent conditional: 0, independent unconditional: 2665, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1650, independent: 1584, independent conditional: 0, independent unconditional: 1584, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1650, independent: 1541, independent conditional: 0, independent unconditional: 1541, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 913, independent: 108, independent conditional: 0, independent unconditional: 108, dependent: 804, dependent conditional: 0, dependent unconditional: 804, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2942, independent: 1081, independent conditional: 0, independent unconditional: 1081, dependent: 211, dependent conditional: 0, dependent unconditional: 211, unknown: 1650, unknown conditional: 0, unknown unconditional: 1650] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 166 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 7 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:29:44,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_452230ab-3523-4cc8-afd7-202ffc8af545/bin/uautomizer-ZsLfNo2U6R/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