./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/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 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 --- 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 18:24:52,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:24:52,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:24:52,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:24:52,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:24:52,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:24:52,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:24:52,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:24:52,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:24:52,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:24:52,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:24:52,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:24:52,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:24:52,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:24:52,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:24:52,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:24:52,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:24:52,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:24:52,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:24:52,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:24:52,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:24:52,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:24:52,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:24:52,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:24:52,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:24:52,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:24:52,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:24:52,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:24:52,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:24:52,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:24:52,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:24:52,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:24:52,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:24:52,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:24:52,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:24:52,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:24:52,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:24:52,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:24:52,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:24:52,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:24:52,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:24:52,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:24:52,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:24:52,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:24:52,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:24:52,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:24:52,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:24:52,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:24:52,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:24:52,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:24:52,460 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:24:52,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:24:52,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:24:52,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:24:52,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:24:52,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:24:52,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:24:52,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:24:52,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:24:52,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:24:52,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:24:52,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:24:52,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:24:52,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:24:52,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:24:52,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:24:52,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:24:52,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:24:52,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:52,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:24:52,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:24:52,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:24:52,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:24:52,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:24:52,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:24:52,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:24:52,471 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:24:52,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:24:52,472 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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 [2022-11-25 18:24:52,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:24:52,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:24:52,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:24:52,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:24:52,933 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:24:52,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe021_tso.i [2022-11-25 18:24:56,418 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:24:56,803 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:24:56,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/sv-benchmarks/c/pthread-wmm/safe021_tso.i [2022-11-25 18:24:56,828 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/data/a4f7fddc9/7f0f1cfccbb24b628aa2d9c19a094f81/FLAG9f6c3161b [2022-11-25 18:24:56,850 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/data/a4f7fddc9/7f0f1cfccbb24b628aa2d9c19a094f81 [2022-11-25 18:24:56,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:24:56,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:24:56,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:56,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:24:56,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:24:56,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:56" (1/1) ... [2022-11-25 18:24:56,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5496545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:56, skipping insertion in model container [2022-11-25 18:24:56,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:56" (1/1) ... [2022-11-25 18:24:56,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:24:56,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:24:57,180 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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/sv-benchmarks/c/pthread-wmm/safe021_tso.i[945,958] [2022-11-25 18:24:57,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:57,521 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:24:57,540 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_c08739ac-9819-4b58-a160-3c2efb8ca0a1/sv-benchmarks/c/pthread-wmm/safe021_tso.i[945,958] [2022-11-25 18:24:57,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:24:57,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:24:57,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:57,661 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:24:57,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57 WrapperNode [2022-11-25 18:24:57,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:57,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:57,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:24:57,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:24:57,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,736 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-11-25 18:24:57,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:57,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:24:57,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:24:57,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:24:57,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:24:57,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:24:57,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:24:57,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:24:57,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (1/1) ... [2022-11-25 18:24:57,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:57,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:24:57,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:24:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:24:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:24:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:24:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:24:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:24:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:24:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:24:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:24:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:24:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:24:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:24:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:24:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:24:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:24:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:24:57,911 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 18:24:58,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:24:58,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:24:58,350 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:24:58,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:24:58,458 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:24:58,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:58 BoogieIcfgContainer [2022-11-25 18:24:58,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:24:58,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:24:58,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:24:58,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:24:58,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:24:56" (1/3) ... [2022-11-25 18:24:58,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2451afd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:58, skipping insertion in model container [2022-11-25 18:24:58,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:57" (2/3) ... [2022-11-25 18:24:58,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2451afd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:58, skipping insertion in model container [2022-11-25 18:24:58,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:58" (3/3) ... [2022-11-25 18:24:58,492 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2022-11-25 18:24:58,505 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:24:58,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:24:58,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 18:24:58,520 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:24:58,673 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:24:58,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2022-11-25 18:24:58,771 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-11-25 18:24:58,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:24:58,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-11-25 18:24:58,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2022-11-25 18:24:58,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2022-11-25 18:24:58,788 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:24:58,812 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2022-11-25 18:24:58,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2022-11-25 18:24:58,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2022-11-25 18:24:58,875 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-11-25 18:24:58,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:24:58,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-11-25 18:24:58,886 INFO L119 LiptonReduction]: Number of co-enabled transitions 2208 [2022-11-25 18:25:02,476 INFO L134 LiptonReduction]: Checked pairs total: 6095 [2022-11-25 18:25:02,477 INFO L136 LiptonReduction]: Total number of compositions: 84 [2022-11-25 18:25:02,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:02,505 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;@219fcbd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:02,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 18:25:02,510 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 18:25:02,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:25:02,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:02,511 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:25:02,511 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 18:25:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:02,517 INFO L85 PathProgramCache]: Analyzing trace with hash 10817252, now seen corresponding path program 1 times [2022-11-25 18:25:02,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:02,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942217340] [2022-11-25 18:25:02,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:02,929 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 18:25:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:02,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942217340] [2022-11-25 18:25:02,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942217340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:02,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:02,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:25:02,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054612140] [2022-11-25 18:25:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:02,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:25:02,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:02,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:25:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:25:03,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 181 [2022-11-25 18:25:03,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 18:25:03,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:03,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 181 [2022-11-25 18:25:03,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:03,296 INFO L130 PetriNetUnfolder]: 364/612 cut-off events. [2022-11-25 18:25:03,296 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-25 18:25:03,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 612 events. 364/612 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2678 event pairs, 96 based on Foata normal form. 46/566 useless extension candidates. Maximal degree in co-relation 1244. Up to 529 conditions per place. [2022-11-25 18:25:03,310 INFO L137 encePairwiseOnDemand]: 170/181 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2022-11-25 18:25:03,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 149 flow [2022-11-25 18:25:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:25:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:25:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2022-11-25 18:25:03,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5211786372007366 [2022-11-25 18:25:03,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2022-11-25 18:25:03,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2022-11-25 18:25:03,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:03,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2022-11-25 18:25:03,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 18:25:03,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 18:25:03,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 18:25:03,359 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 283 transitions. [2022-11-25 18:25:03,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 149 flow [2022-11-25 18:25:03,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:25:03,366 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2022-11-25 18:25:03,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2022-11-25 18:25:03,374 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-11-25 18:25:03,374 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2022-11-25 18:25:03,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 18:25:03,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:03,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:03,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:25:03,376 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 18:25:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1527833331, now seen corresponding path program 1 times [2022-11-25 18:25:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:03,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944206172] [2022-11-25 18:25:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:03,547 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 18:25:03,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:03,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944206172] [2022-11-25 18:25:03,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944206172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:03,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:03,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:25:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045212367] [2022-11-25 18:25:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:03,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:25:03,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:03,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:25:03,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:25:03,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 181 [2022-11-25 18:25:03,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 18:25:03,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:03,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 181 [2022-11-25 18:25:03,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:03,724 INFO L130 PetriNetUnfolder]: 249/421 cut-off events. [2022-11-25 18:25:03,724 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-11-25 18:25:03,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 421 events. 249/421 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1624 event pairs, 60 based on Foata normal form. 67/414 useless extension candidates. Maximal degree in co-relation 1084. Up to 337 conditions per place. [2022-11-25 18:25:03,728 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2022-11-25 18:25:03,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 156 flow [2022-11-25 18:25:03,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:25:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2022-11-25 18:25:03,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49171270718232046 [2022-11-25 18:25:03,731 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 356 transitions. [2022-11-25 18:25:03,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 356 transitions. [2022-11-25 18:25:03,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:03,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 356 transitions. [2022-11-25 18:25:03,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 18:25:03,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 18:25:03,737 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 18:25:03,737 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 4 states and 356 transitions. [2022-11-25 18:25:03,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 156 flow [2022-11-25 18:25:03,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:25:03,739 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 80 flow [2022-11-25 18:25:03,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2022-11-25 18:25:03,740 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2022-11-25 18:25:03,741 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 80 flow [2022-11-25 18:25:03,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 18:25:03,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:03,742 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:03,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:25:03,742 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 18:25:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash 118351704, now seen corresponding path program 1 times [2022-11-25 18:25:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:03,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635028539] [2022-11-25 18:25:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:03,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:03,831 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 18:25:03,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:03,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635028539] [2022-11-25 18:25:03,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635028539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:03,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:03,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:25:03,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774068234] [2022-11-25 18:25:03,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:03,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:25:03,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:25:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:25:03,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 181 [2022-11-25 18:25:03,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 18:25:03,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:03,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 181 [2022-11-25 18:25:03,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:03,970 INFO L130 PetriNetUnfolder]: 170/293 cut-off events. [2022-11-25 18:25:03,971 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2022-11-25 18:25:03,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 293 events. 170/293 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1010 event pairs, 39 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 748. Up to 120 conditions per place. [2022-11-25 18:25:03,974 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 29 selfloop transitions, 7 changer transitions 3/42 dead transitions. [2022-11-25 18:25:03,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 208 flow [2022-11-25 18:25:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:25:03,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2022-11-25 18:25:03,976 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.505524861878453 [2022-11-25 18:25:03,976 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 366 transitions. [2022-11-25 18:25:03,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 366 transitions. [2022-11-25 18:25:03,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:03,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 366 transitions. [2022-11-25 18:25:03,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 18:25:03,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 18:25:03,981 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 18:25:03,981 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 80 flow. Second operand 4 states and 366 transitions. [2022-11-25 18:25:03,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 208 flow [2022-11-25 18:25:03,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:25:03,983 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 101 flow [2022-11-25 18:25:03,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-11-25 18:25:03,985 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2022-11-25 18:25:03,985 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 101 flow [2022-11-25 18:25:03,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 18:25:03,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:03,986 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:03,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:25:03,986 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 18:25:03,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:03,987 INFO L85 PathProgramCache]: Analyzing trace with hash -621295398, now seen corresponding path program 1 times [2022-11-25 18:25:03,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:03,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426843237] [2022-11-25 18:25:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:03,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:04,173 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 18:25:04,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:04,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426843237] [2022-11-25 18:25:04,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426843237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:04,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:04,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:25:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927447305] [2022-11-25 18:25:04,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:04,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:25:04,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:25:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:04,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 181 [2022-11-25 18:25:04,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 18:25:04,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:04,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 181 [2022-11-25 18:25:04,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:04,310 INFO L130 PetriNetUnfolder]: 156/267 cut-off events. [2022-11-25 18:25:04,310 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2022-11-25 18:25:04,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 267 events. 156/267 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 913 event pairs, 39 based on Foata normal form. 9/269 useless extension candidates. Maximal degree in co-relation 804. Up to 120 conditions per place. [2022-11-25 18:25:04,312 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2022-11-25 18:25:04,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 187 flow [2022-11-25 18:25:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:25:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:25:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 441 transitions. [2022-11-25 18:25:04,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.487292817679558 [2022-11-25 18:25:04,315 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 441 transitions. [2022-11-25 18:25:04,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 441 transitions. [2022-11-25 18:25:04,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:04,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 441 transitions. [2022-11-25 18:25:04,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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 18:25:04,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 18:25:04,321 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 18:25:04,322 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 101 flow. Second operand 5 states and 441 transitions. [2022-11-25 18:25:04,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 187 flow [2022-11-25 18:25:04,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 163 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-25 18:25:04,326 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2022-11-25 18:25:04,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2022-11-25 18:25:04,328 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2022-11-25 18:25:04,328 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2022-11-25 18:25:04,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 18:25:04,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-25 18:25:04,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-25 18:25:04,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-25 18:25:04,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-25 18:25:04,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-25 18:25:04,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-25 18:25:04,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-25 18:25:04,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-25 18:25:04,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-25 18:25:04,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-25 18:25:04,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-25 18:25:04,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-25 18:25:04,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-25 18:25:04,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-25 18:25:04,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-25 18:25:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:25:04,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:25:04,343 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:25:04,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:25:04,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:25:04 BasicIcfg [2022-11-25 18:25:04,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:25:04,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:25:04,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:25:04,354 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:25:04,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:58" (3/4) ... [2022-11-25 18:25:04,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:25:04,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 18:25:04,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 18:25:04,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 18:25:04,372 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-25 18:25:04,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:25:04,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:25:04,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:25:04,432 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:25:04,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:25:04,437 INFO L158 Benchmark]: Toolchain (without parser) took 7581.32ms. Allocated memory was 151.0MB in the beginning and 276.8MB in the end (delta: 125.8MB). Free memory was 106.4MB in the beginning and 165.1MB in the end (delta: -58.7MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,437 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:04,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.33ms. Allocated memory is still 151.0MB. Free memory was 106.4MB in the beginning and 83.3MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.46ms. Allocated memory is still 151.0MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,439 INFO L158 Benchmark]: Boogie Preprocessor took 54.90ms. Allocated memory is still 151.0MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,440 INFO L158 Benchmark]: RCFGBuilder took 666.92ms. Allocated memory is still 151.0MB. Free memory was 79.6MB in the beginning and 123.0MB in the end (delta: -43.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,440 INFO L158 Benchmark]: TraceAbstraction took 5869.51ms. Allocated memory was 151.0MB in the beginning and 276.8MB in the end (delta: 125.8MB). Free memory was 122.3MB in the beginning and 168.3MB in the end (delta: -46.0MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,441 INFO L158 Benchmark]: Witness Printer took 82.52ms. Allocated memory is still 276.8MB. Free memory was 168.3MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:04,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.33ms. Allocated memory is still 151.0MB. Free memory was 106.4MB in the beginning and 83.3MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.46ms. Allocated memory is still 151.0MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.90ms. Allocated memory is still 151.0MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.92ms. Allocated memory is still 151.0MB. Free memory was 79.6MB in the beginning and 123.0MB in the end (delta: -43.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5869.51ms. Allocated memory was 151.0MB in the beginning and 276.8MB in the end (delta: 125.8MB). Free memory was 122.3MB in the beginning and 168.3MB in the end (delta: -46.0MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 82.52ms. Allocated memory is still 276.8MB. Free memory was 168.3MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 102 PlacesBefore, 33 PlacesAfterwards, 94 TransitionsBefore, 24 TransitionsAfterwards, 2208 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 6095 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2829, independent: 2634, independent conditional: 0, independent unconditional: 2634, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1560, independent: 1521, independent conditional: 0, independent unconditional: 1521, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1560, independent: 1500, independent conditional: 0, independent unconditional: 1500, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 220, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2829, independent: 1113, independent conditional: 0, independent unconditional: 1113, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 1560, unknown conditional: 0, unknown unconditional: 1560] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: 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, 126 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: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 2 mSDtfsCounter, 197 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=101occurred 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, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 18:25:04,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08739ac-9819-4b58-a160-3c2efb8ca0a1/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