./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix035.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/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_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/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_a34804c0-f6f7-49bc-b593-192a677e415a/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 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 --- 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 17:38:00,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:38:00,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:38:00,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:38:00,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:38:00,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:38:00,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:38:00,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:38:00,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:38:00,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:38:00,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:38:00,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:38:00,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:38:00,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:38:00,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:38:00,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:38:00,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:38:00,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:38:00,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:38:00,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:38:01,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:38:01,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:38:01,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:38:01,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:38:01,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:38:01,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:38:01,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:38:01,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:38:01,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:38:01,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:38:01,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:38:01,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:38:01,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:38:01,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:38:01,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:38:01,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:38:01,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:38:01,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:38:01,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:38:01,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:38:01,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:38:01,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:38:01,037 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:38:01,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:38:01,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:38:01,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:38:01,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:38:01,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:38:01,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:38:01,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:38:01,040 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:38:01,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:38:01,040 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:38:01,040 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:38:01,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:38:01,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:38:01,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:38:01,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:38:01,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:38:01,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:38:01,042 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:38:01,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:38:01,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:38:01,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:38:01,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:38:01,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:38:01,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:38:01,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:38:01,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:38:01,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:38:01,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:38:01,044 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:38:01,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:38:01,045 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:38:01,045 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_a34804c0-f6f7-49bc-b593-192a677e415a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 [2022-12-13 17:38:01,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:38:01,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:38:01,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:38:01,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:38:01,249 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:38:01,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix035.oepc.i [2022-12-13 17:38:03,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:38:04,107 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:38:04,108 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/sv-benchmarks/c/pthread-wmm/mix035.oepc.i [2022-12-13 17:38:04,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/data/49ca0e80f/9da175926dac42619379b2552a473e72/FLAG43ebf9618 [2022-12-13 17:38:04,127 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/data/49ca0e80f/9da175926dac42619379b2552a473e72 [2022-12-13 17:38:04,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:38:04,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:38:04,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:38:04,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:38:04,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:38:04,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d86afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04, skipping insertion in model container [2022-12-13 17:38:04,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:38:04,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:38:04,275 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_a34804c0-f6f7-49bc-b593-192a677e415a/sv-benchmarks/c/pthread-wmm/mix035.oepc.i[945,958] [2022-12-13 17:38:04,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:38:04,412 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:38:04,422 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_a34804c0-f6f7-49bc-b593-192a677e415a/sv-benchmarks/c/pthread-wmm/mix035.oepc.i[945,958] [2022-12-13 17:38:04,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:38:04,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:38:04,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:38:04,482 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:38:04,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04 WrapperNode [2022-12-13 17:38:04,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:38:04,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:38:04,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:38:04,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:38:04,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,519 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2022-12-13 17:38:04,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:38:04,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:38:04,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:38:04,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:38:04,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:38:04,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:38:04,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:38:04,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:38:04,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (1/1) ... [2022-12-13 17:38:04,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:38:04,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:38:04,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:38:04,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:38:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:38:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:38:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:38:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:38:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:38:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:38:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:38:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:38:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:38:04,612 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 17:38:04,718 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:38:04,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:38:05,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:38:05,104 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:38:05,104 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:38:05,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:05 BoogieIcfgContainer [2022-12-13 17:38:05,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:38:05,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:38:05,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:38:05,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:38:05,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:38:04" (1/3) ... [2022-12-13 17:38:05,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1304bfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:38:05, skipping insertion in model container [2022-12-13 17:38:05,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:04" (2/3) ... [2022-12-13 17:38:05,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1304bfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:38:05, skipping insertion in model container [2022-12-13 17:38:05,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:05" (3/3) ... [2022-12-13 17:38:05,113 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035.oepc.i [2022-12-13 17:38:05,120 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:38:05,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:38:05,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 17:38:05,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:38:05,174 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:38:05,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 263 flow [2022-12-13 17:38:05,240 INFO L130 PetriNetUnfolder]: 2/121 cut-off events. [2022-12-13 17:38:05,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:05,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 2/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 17:38:05,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 124 transitions, 263 flow [2022-12-13 17:38:05,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 121 transitions, 251 flow [2022-12-13 17:38:05,252 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:38:05,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 121 transitions, 251 flow [2022-12-13 17:38:05,262 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 121 transitions, 251 flow [2022-12-13 17:38:05,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 121 transitions, 251 flow [2022-12-13 17:38:05,294 INFO L130 PetriNetUnfolder]: 2/121 cut-off events. [2022-12-13 17:38:05,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:05,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 2/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 17:38:05,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 2792 [2022-12-13 17:38:07,853 INFO L134 LiptonReduction]: Checked pairs total: 8641 [2022-12-13 17:38:07,853 INFO L136 LiptonReduction]: Total number of compositions: 102 [2022-12-13 17:38:07,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:38:07,873 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;@4d8b0e8f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:38:07,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 17:38:07,877 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 17:38:07,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:07,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:07,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:38:07,878 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 17:38:07,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1420357672, now seen corresponding path program 1 times [2022-12-13 17:38:07,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:07,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928309982] [2022-12-13 17:38:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:07,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:08,085 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 17:38:08,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:08,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928309982] [2022-12-13 17:38:08,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928309982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:08,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:08,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:38:08,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491415004] [2022-12-13 17:38:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:08,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:08,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:08,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 226 [2022-12-13 17:38:08,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 17:38:08,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:08,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 226 [2022-12-13 17:38:08,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:08,387 INFO L130 PetriNetUnfolder]: 1101/1718 cut-off events. [2022-12-13 17:38:08,387 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 17:38:08,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3475 conditions, 1718 events. 1101/1718 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8320 event pairs, 369 based on Foata normal form. 0/1417 useless extension candidates. Maximal degree in co-relation 3464. Up to 1241 conditions per place. [2022-12-13 17:38:08,396 INFO L137 encePairwiseOnDemand]: 215/226 looper letters, 38 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2022-12-13 17:38:08,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 189 flow [2022-12-13 17:38:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2022-12-13 17:38:08,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5250737463126843 [2022-12-13 17:38:08,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2022-12-13 17:38:08,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2022-12-13 17:38:08,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:08,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2022-12-13 17:38:08,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 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) [2022-12-13 17:38:08,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 17:38:08,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 17:38:08,418 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 356 transitions. [2022-12-13 17:38:08,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 189 flow [2022-12-13 17:38:08,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:38:08,421 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2022-12-13 17:38:08,423 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, 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=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-12-13 17:38:08,425 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-13 17:38:08,425 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2022-12-13 17:38:08,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 17:38:08,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:08,426 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:08,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:38:08,426 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 17:38:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1036244147, now seen corresponding path program 1 times [2022-12-13 17:38:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:08,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706389845] [2022-12-13 17:38:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:08,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:08,524 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 17:38:08,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:08,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706389845] [2022-12-13 17:38:08,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706389845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:08,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:08,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920857460] [2022-12-13 17:38:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:08,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:38:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:08,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:38:08,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:38:08,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 226 [2022-12-13 17:38:08,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 17:38:08,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:08,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 226 [2022-12-13 17:38:08,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:08,747 INFO L130 PetriNetUnfolder]: 885/1370 cut-off events. [2022-12-13 17:38:08,747 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-13 17:38:08,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3307 conditions, 1370 events. 885/1370 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6300 event pairs, 321 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 3296. Up to 892 conditions per place. [2022-12-13 17:38:08,753 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 35 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2022-12-13 17:38:08,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 196 flow [2022-12-13 17:38:08,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:38:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:38:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2022-12-13 17:38:08,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.497787610619469 [2022-12-13 17:38:08,755 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2022-12-13 17:38:08,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2022-12-13 17:38:08,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:08,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2022-12-13 17:38:08,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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 17:38:08,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 17:38:08,759 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 17:38:08,759 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 450 transitions. [2022-12-13 17:38:08,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 196 flow [2022-12-13 17:38:08,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:08,760 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2022-12-13 17:38:08,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=82, 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=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-12-13 17:38:08,761 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2022-12-13 17:38:08,761 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2022-12-13 17:38:08,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 17:38:08,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:08,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:08,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:38:08,762 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 17:38:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1036244148, now seen corresponding path program 1 times [2022-12-13 17:38:08,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:08,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330992362] [2022-12-13 17:38:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:08,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:08,833 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 17:38:08,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:08,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330992362] [2022-12-13 17:38:08,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330992362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:08,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:08,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837251625] [2022-12-13 17:38:08,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:08,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:38:08,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:08,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:38:08,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:38:08,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 226 [2022-12-13 17:38:08,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 17:38:08,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:08,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 226 [2022-12-13 17:38:08,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:09,085 INFO L130 PetriNetUnfolder]: 720/1109 cut-off events. [2022-12-13 17:38:09,085 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2022-12-13 17:38:09,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2650 conditions, 1109 events. 720/1109 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4942 event pairs, 293 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 2638. Up to 462 conditions per place. [2022-12-13 17:38:09,090 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 44 selfloop transitions, 7 changer transitions 3/57 dead transitions. [2022-12-13 17:38:09,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 268 flow [2022-12-13 17:38:09,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:38:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:38:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions. [2022-12-13 17:38:09,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5143805309734514 [2022-12-13 17:38:09,092 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 465 transitions. [2022-12-13 17:38:09,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions. [2022-12-13 17:38:09,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:09,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions. [2022-12-13 17:38:09,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 17:38:09,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 17:38:09,095 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 17:38:09,095 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 465 transitions. [2022-12-13 17:38:09,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 268 flow [2022-12-13 17:38:09,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:38:09,097 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2022-12-13 17:38:09,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=85, 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=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2022-12-13 17:38:09,098 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-12-13 17:38:09,098 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2022-12-13 17:38:09,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 17:38:09,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:09,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:09,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:38:09,099 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 17:38:09,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1720660963, now seen corresponding path program 1 times [2022-12-13 17:38:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:09,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124389214] [2022-12-13 17:38:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:09,193 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 17:38:09,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:09,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124389214] [2022-12-13 17:38:09,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124389214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:09,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:09,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:38:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882739749] [2022-12-13 17:38:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:09,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:38:09,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:09,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:38:09,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:38:09,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 226 [2022-12-13 17:38:09,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 17:38:09,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:09,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 226 [2022-12-13 17:38:09,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:09,427 INFO L130 PetriNetUnfolder]: 700/1073 cut-off events. [2022-12-13 17:38:09,427 INFO L131 PetriNetUnfolder]: For 747/747 co-relation queries the response was YES. [2022-12-13 17:38:09,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1073 events. 700/1073 cut-off events. For 747/747 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4844 event pairs, 293 based on Foata normal form. 12/1072 useless extension candidates. Maximal degree in co-relation 2856. Up to 462 conditions per place. [2022-12-13 17:38:09,431 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2022-12-13 17:38:09,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 247 flow [2022-12-13 17:38:09,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:38:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:38:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 561 transitions. [2022-12-13 17:38:09,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4964601769911504 [2022-12-13 17:38:09,433 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 561 transitions. [2022-12-13 17:38:09,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 561 transitions. [2022-12-13 17:38:09,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:09,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 561 transitions. [2022-12-13 17:38:09,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 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 17:38:09,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 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 17:38:09,439 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 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 17:38:09,439 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 561 transitions. [2022-12-13 17:38:09,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 247 flow [2022-12-13 17:38:09,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 223 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 17:38:09,442 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-13 17:38:09,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-13 17:38:09,443 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2022-12-13 17:38:09,443 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-12-13 17:38:09,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 17:38:09,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-13 17:38:09,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 17:38:09,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 17:38:09,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 17:38:09,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 17:38:09,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 17:38:09,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 17:38:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 17:38:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-13 17:38:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-13 17:38:09,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:38:09,449 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 17:38:09,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:38:09,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:38:09,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:38:09 BasicIcfg [2022-12-13 17:38:09,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:38:09,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:38:09,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:38:09,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:38:09,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:05" (3/4) ... [2022-12-13 17:38:09,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:38:09,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 17:38:09,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 17:38:09,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 17:38:09,468 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 17:38:09,468 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 17:38:09,468 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:38:09,469 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:38:09,495 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:38:09,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:38:09,496 INFO L158 Benchmark]: Toolchain (without parser) took 5366.64ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 78.4MB in the beginning and 116.0MB in the end (delta: -37.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,497 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:38:09,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.10ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 51.3MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.03ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 51.3MB in the beginning and 146.7MB in the end (delta: -95.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,498 INFO L158 Benchmark]: Boogie Preprocessor took 23.18ms. Allocated memory is still 176.2MB. Free memory was 146.6MB in the beginning and 144.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:38:09,498 INFO L158 Benchmark]: RCFGBuilder took 557.04ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 111.4MB in the end (delta: 33.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,498 INFO L158 Benchmark]: TraceAbstraction took 4349.71ms. Allocated memory is still 176.2MB. Free memory was 111.0MB in the beginning and 119.2MB in the end (delta: -8.1MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,499 INFO L158 Benchmark]: Witness Printer took 37.43ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 116.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:38:09,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.10ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 51.3MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.03ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 51.3MB in the beginning and 146.7MB in the end (delta: -95.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.18ms. Allocated memory is still 176.2MB. Free memory was 146.6MB in the beginning and 144.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 557.04ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 111.4MB in the end (delta: 33.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4349.71ms. Allocated memory is still 176.2MB. Free memory was 111.0MB in the beginning and 119.2MB in the end (delta: -8.1MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. * Witness Printer took 37.43ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 116.0MB 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: 2.6s, 129 PlacesBefore, 38 PlacesAfterwards, 121 TransitionsBefore, 29 TransitionsAfterwards, 2792 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 8641 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3413, independent: 3165, independent conditional: 0, independent unconditional: 3165, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1567, independent: 1520, independent conditional: 0, independent unconditional: 1520, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3413, independent: 1645, independent conditional: 0, independent unconditional: 1645, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 1567, unknown conditional: 0, unknown unconditional: 1567] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: 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, 158 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 5 mSDtfsCounter, 260 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=111occurred 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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 17:38:09,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34804c0-f6f7-49bc-b593-192a677e415a/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