./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8 --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 697ff70a4856546a25a8cc2eb04fc80299855e02086960ffcc9a4790310db5da --- 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 [2022-12-13 17:21:48,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:21:48,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:21:48,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:21:48,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:21:48,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:21:48,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:21:48,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:21:48,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:21:48,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:21:48,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:21:48,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:21:48,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:21:48,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:21:48,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:21:48,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:21:48,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:21:48,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:21:48,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:21:48,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:21:48,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:21:48,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:21:48,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:21:48,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:21:48,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:21:48,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:21:48,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:21:48,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:21:48,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:21:48,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:21:48,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:21:48,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:21:48,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:21:48,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:21:48,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:21:48,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:21:48,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:21:48,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:21:48,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:21:48,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:21:48,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:21:48,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:21:48,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:21:48,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:21:48,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:21:48,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:21:48,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:21:48,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:21:48,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:21:48,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:21:48,447 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:21:48,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:21:48,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:21:48,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:21:48,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:21:48,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:21:48,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:21:48,451 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:21:48,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:21:48,451 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:21:48,451 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_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 697ff70a4856546a25a8cc2eb04fc80299855e02086960ffcc9a4790310db5da [2022-12-13 17:21:48,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:21:48,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:21:48,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:21:48,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:21:48,650 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:21:48,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i [2022-12-13 17:21:51,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:21:51,518 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:21:51,518 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/sv-benchmarks/c/pthread-wmm/safe012_power.opt.i [2022-12-13 17:21:51,529 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/data/e44c1f035/4e61635405444ca4b17b14bd8669be8b/FLAGc5c82d742 [2022-12-13 17:21:51,539 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/data/e44c1f035/4e61635405444ca4b17b14bd8669be8b [2022-12-13 17:21:51,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:21:51,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:21:51,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:21:51,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:21:51,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:21:51,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:51,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ea106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51, skipping insertion in model container [2022-12-13 17:21:51,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:51,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:21:51,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:21:51,714 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_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/sv-benchmarks/c/pthread-wmm/safe012_power.opt.i[951,964] [2022-12-13 17:21:51,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:21:51,889 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:21:51,901 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_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/sv-benchmarks/c/pthread-wmm/safe012_power.opt.i[951,964] [2022-12-13 17:21:51,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:51,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:51,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:21:51,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:21:51,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51 WrapperNode [2022-12-13 17:21:51,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:21:51,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:21:51,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:21:51,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:21:51,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,025 INFO L138 Inliner]: procedures = 176, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2022-12-13 17:21:52,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:21:52,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:21:52,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:21:52,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:21:52,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:21:52,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:21:52,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:21:52,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:21:52,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (1/1) ... [2022-12-13 17:21:52,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:21:52,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:21:52,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:21:52,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:21:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:21:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:21:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:21:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:21:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:21:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:21:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:21:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:21:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:21:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:21:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:21:52,126 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:21:52,254 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:21:52,256 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:21:52,581 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:21:52,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:21:52,748 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:21:52,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:52 BoogieIcfgContainer [2022-12-13 17:21:52,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:21:52,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:21:52,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:21:52,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:21:52,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:21:51" (1/3) ... [2022-12-13 17:21:52,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6b5f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:21:52, skipping insertion in model container [2022-12-13 17:21:52,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:51" (2/3) ... [2022-12-13 17:21:52,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6b5f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:21:52, skipping insertion in model container [2022-12-13 17:21:52,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:52" (3/3) ... [2022-12-13 17:21:52,758 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_power.opt.i [2022-12-13 17:21:52,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:21:52,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:21:52,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 17:21:52,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:21:52,837 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:21:52,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 138 transitions, 291 flow [2022-12-13 17:21:52,899 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-12-13 17:21:52,899 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:52,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-12-13 17:21:52,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 138 transitions, 291 flow [2022-12-13 17:21:52,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 135 transitions, 279 flow [2022-12-13 17:21:52,910 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:21:52,917 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 135 transitions, 279 flow [2022-12-13 17:21:52,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 135 transitions, 279 flow [2022-12-13 17:21:52,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 279 flow [2022-12-13 17:21:52,940 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-12-13 17:21:52,941 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:52,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-12-13 17:21:52,943 INFO L119 LiptonReduction]: Number of co-enabled transitions 2464 [2022-12-13 17:21:59,209 INFO L134 LiptonReduction]: Checked pairs total: 9258 [2022-12-13 17:21:59,209 INFO L136 LiptonReduction]: Total number of compositions: 117 [2022-12-13 17:21:59,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:21:59,223 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;@f63d9ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:21:59,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 17:21:59,226 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 17:21:59,226 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:59,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:21:59,227 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:21:59,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 17:21:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:21:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash 791310347, now seen corresponding path program 1 times [2022-12-13 17:21:59,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:21:59,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853878083] [2022-12-13 17:21:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:21:59,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:21:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:21:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:21:59,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:21:59,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853878083] [2022-12-13 17:21:59,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853878083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:21:59,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:21:59,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:21:59,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693667458] [2022-12-13 17:21:59,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:21:59,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:21:59,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:21:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:21:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:21:59,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 255 [2022-12-13 17:21:59,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-12-13 17:21:59,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:21:59,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 255 [2022-12-13 17:21:59,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:21:59,737 INFO L130 PetriNetUnfolder]: 1065/1706 cut-off events. [2022-12-13 17:21:59,737 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 17:21:59,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3455 conditions, 1706 events. 1065/1706 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8696 event pairs, 461 based on Foata normal form. 114/1317 useless extension candidates. Maximal degree in co-relation 3444. Up to 1539 conditions per place. [2022-12-13 17:21:59,746 INFO L137 encePairwiseOnDemand]: 243/255 looper letters, 36 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2022-12-13 17:21:59,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 179 flow [2022-12-13 17:21:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:21:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:21:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-12-13 17:21:59,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5189542483660131 [2022-12-13 17:21:59,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-12-13 17:21:59,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-12-13 17:21:59,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:21:59,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-12-13 17:21:59,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-12-13 17:21:59,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2022-12-13 17:21:59,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2022-12-13 17:21:59,767 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 397 transitions. [2022-12-13 17:21:59,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 179 flow [2022-12-13 17:21:59,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:21:59,771 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 100 flow [2022-12-13 17:21:59,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-12-13 17:21:59,775 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-13 17:21:59,775 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 100 flow [2022-12-13 17:21:59,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-12-13 17:21:59,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:21:59,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:21:59,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:21:59,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 17:21:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:21:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 966650451, now seen corresponding path program 1 times [2022-12-13 17:21:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:21:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942339277] [2022-12-13 17:21:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:21:59,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:21:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:21:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:21:59,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:21:59,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942339277] [2022-12-13 17:21:59,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942339277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:21:59,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:21:59,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:21:59,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295904258] [2022-12-13 17:21:59,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:21:59,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:21:59,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:21:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:21:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:21:59,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 255 [2022-12-13 17:21:59,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-12-13 17:21:59,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:21:59,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 255 [2022-12-13 17:21:59,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:22:00,161 INFO L130 PetriNetUnfolder]: 749/1206 cut-off events. [2022-12-13 17:22:00,162 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-12-13 17:22:00,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1206 events. 749/1206 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5638 event pairs, 269 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 2964. Up to 1038 conditions per place. [2022-12-13 17:22:00,167 INFO L137 encePairwiseOnDemand]: 248/255 looper letters, 33 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2022-12-13 17:22:00,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 188 flow [2022-12-13 17:22:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:22:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:22:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2022-12-13 17:22:00,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2022-12-13 17:22:00,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 504 transitions. [2022-12-13 17:22:00,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 504 transitions. [2022-12-13 17:22:00,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:22:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 504 transitions. [2022-12-13 17:22:00,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-12-13 17:22:00,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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) [2022-12-13 17:22:00,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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) [2022-12-13 17:22:00,176 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 100 flow. Second operand 4 states and 504 transitions. [2022-12-13 17:22:00,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 188 flow [2022-12-13 17:22:00,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:22:00,178 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 92 flow [2022-12-13 17:22:00,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-12-13 17:22:00,179 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2022-12-13 17:22:00,179 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 92 flow [2022-12-13 17:22:00,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-12-13 17:22:00,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:22:00,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:22:00,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:22:00,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 17:22:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:22:00,181 INFO L85 PathProgramCache]: Analyzing trace with hash 966650452, now seen corresponding path program 1 times [2022-12-13 17:22:00,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:22:00,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826396111] [2022-12-13 17:22:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:22:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:22:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:22:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:22:00,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:22:00,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826396111] [2022-12-13 17:22:00,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826396111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:22:00,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:22:00,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:22:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952150629] [2022-12-13 17:22:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:22:00,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:22:00,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:22:00,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:22:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:22:00,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 255 [2022-12-13 17:22:00,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-12-13 17:22:00,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:22:00,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 255 [2022-12-13 17:22:00,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:22:00,490 INFO L130 PetriNetUnfolder]: 306/529 cut-off events. [2022-12-13 17:22:00,490 INFO L131 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2022-12-13 17:22:00,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 529 events. 306/529 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2047 event pairs, 107 based on Foata normal form. 26/528 useless extension candidates. Maximal degree in co-relation 1303. Up to 182 conditions per place. [2022-12-13 17:22:00,493 INFO L137 encePairwiseOnDemand]: 247/255 looper letters, 39 selfloop transitions, 7 changer transitions 3/51 dead transitions. [2022-12-13 17:22:00,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 248 flow [2022-12-13 17:22:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:22:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:22:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2022-12-13 17:22:00,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5068627450980392 [2022-12-13 17:22:00,496 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 517 transitions. [2022-12-13 17:22:00,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 517 transitions. [2022-12-13 17:22:00,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:22:00,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 517 transitions. [2022-12-13 17:22:00,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 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) [2022-12-13 17:22:00,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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) [2022-12-13 17:22:00,501 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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) [2022-12-13 17:22:00,501 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 92 flow. Second operand 4 states and 517 transitions. [2022-12-13 17:22:00,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 248 flow [2022-12-13 17:22:00,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:22:00,503 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 115 flow [2022-12-13 17:22:00,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2022-12-13 17:22:00,504 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-12-13 17:22:00,504 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 115 flow [2022-12-13 17:22:00,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2022-12-13 17:22:00,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:22:00,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:22:00,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:22:00,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 17:22:00,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:22:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash -525854438, now seen corresponding path program 1 times [2022-12-13 17:22:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:22:00,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658132495] [2022-12-13 17:22:00,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:22:00,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:22:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:22:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:22:00,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:22:00,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658132495] [2022-12-13 17:22:00,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658132495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:22:00,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:22:00,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:22:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124413549] [2022-12-13 17:22:00,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:22:00,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:22:00,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:22:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:22:00,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:22:00,639 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 255 [2022-12-13 17:22:00,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-12-13 17:22:00,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:22:00,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 255 [2022-12-13 17:22:00,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:22:00,782 INFO L130 PetriNetUnfolder]: 250/413 cut-off events. [2022-12-13 17:22:00,782 INFO L131 PetriNetUnfolder]: For 330/330 co-relation queries the response was YES. [2022-12-13 17:22:00,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 413 events. 250/413 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1543 event pairs, 91 based on Foata normal form. 15/419 useless extension candidates. Maximal degree in co-relation 1168. Up to 182 conditions per place. [2022-12-13 17:22:00,784 INFO L137 encePairwiseOnDemand]: 247/255 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2022-12-13 17:22:00,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 209 flow [2022-12-13 17:22:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:22:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:22:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 623 transitions. [2022-12-13 17:22:00,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4886274509803922 [2022-12-13 17:22:00,786 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 623 transitions. [2022-12-13 17:22:00,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 623 transitions. [2022-12-13 17:22:00,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:22:00,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 623 transitions. [2022-12-13 17:22:00,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 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) [2022-12-13 17:22:00,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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) [2022-12-13 17:22:00,790 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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) [2022-12-13 17:22:00,790 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 115 flow. Second operand 5 states and 623 transitions. [2022-12-13 17:22:00,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 209 flow [2022-12-13 17:22:00,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 185 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 17:22:00,791 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2022-12-13 17:22:00,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2022-12-13 17:22:00,792 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2022-12-13 17:22:00,792 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2022-12-13 17:22:00,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-12-13 17:22:00,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-13 17:22:00,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 17:22:00,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 17:22:00,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 17:22:00,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-13 17:22:00,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-13 17:22:00,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:22:00,796 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 17:22:00,800 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:22:00,800 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:22:00,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:22:00 BasicIcfg [2022-12-13 17:22:00,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:22:00,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:22:00,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:22:00,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:22:00,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:52" (3/4) ... [2022-12-13 17:22:00,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:22:00,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 17:22:00,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 17:22:00,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 17:22:00,812 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-12-13 17:22:00,812 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 17:22:00,813 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:22:00,813 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:22:00,842 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:22:00,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:22:00,842 INFO L158 Benchmark]: Toolchain (without parser) took 9300.09ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 78.0MB in the end (delta: 65.8MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,842 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:22:00,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.94ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 116.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.15ms. Allocated memory is still 180.4MB. Free memory was 116.5MB in the beginning and 113.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,843 INFO L158 Benchmark]: Boogie Preprocessor took 29.44ms. Allocated memory is still 180.4MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,843 INFO L158 Benchmark]: RCFGBuilder took 694.77ms. Allocated memory is still 180.4MB. Free memory was 111.7MB in the beginning and 111.9MB in the end (delta: -138.2kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,844 INFO L158 Benchmark]: TraceAbstraction took 8050.02ms. Allocated memory is still 180.4MB. Free memory was 110.8MB in the beginning and 81.1MB in the end (delta: 29.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,844 INFO L158 Benchmark]: Witness Printer took 38.92ms. Allocated memory is still 180.4MB. Free memory was 81.1MB in the beginning and 78.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:22:00,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.94ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 116.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.15ms. Allocated memory is still 180.4MB. Free memory was 116.5MB in the beginning and 113.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.44ms. Allocated memory is still 180.4MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.77ms. Allocated memory is still 180.4MB. Free memory was 111.7MB in the beginning and 111.9MB in the end (delta: -138.2kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8050.02ms. Allocated memory is still 180.4MB. Free memory was 110.8MB in the beginning and 81.1MB in the end (delta: 29.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 38.92ms. Allocated memory is still 180.4MB. Free memory was 81.1MB in the beginning and 78.0MB 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: 6.3s, 143 PlacesBefore, 38 PlacesAfterwards, 135 TransitionsBefore, 29 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 9258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4268, independent: 3960, independent conditional: 0, independent unconditional: 3960, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1337, independent: 1292, independent conditional: 0, independent unconditional: 1292, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4268, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 1337, unknown conditional: 0, unknown unconditional: 1337] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: 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, 169 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: 7.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 1 mSDtfsCounter, 246 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=115occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 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! [2022-12-13 17:22:00,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144ff6d9-4ccd-4019-96b1-c2fc8e50b88c/bin/uautomizer-uyxdKDjOR8/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