./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/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_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/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_d02d16f7-7ff9-483f-adb4-fa425a9f7002/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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:21:01,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:21:01,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:21:01,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:21:01,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:21:01,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:21:01,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:21:01,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:21:01,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:21:01,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:21:01,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:21:01,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:21:01,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:21:01,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:21:01,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:21:01,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:21:01,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:21:01,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:21:01,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:21:01,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:21:01,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:21:01,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:21:01,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:21:01,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:21:01,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:21:01,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:21:01,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:21:01,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:21:01,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:21:01,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:21:01,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:21:01,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:21:01,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:21:01,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:21:01,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:21:01,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:21:01,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:21:01,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:21:01,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:21:01,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:21:01,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:21:01,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:21:01,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:21:01,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:21:01,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:21:01,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:21:01,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:21:01,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:21:01,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:21:01,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:21:01,172 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:21:01,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:21:01,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:21:01,172 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:21:01,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:21:01,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:21:01,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:21:01,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:21:01,175 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:21:01,175 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_d02d16f7-7ff9-483f-adb4-fa425a9f7002/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2022-12-13 17:21:01,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:21:01,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:21:01,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:21:01,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:21:01,357 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:21:01,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe036.i [2022-12-13 17:21:03,961 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:21:04,124 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:21:04,125 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/sv-benchmarks/c/pthread-wmm/safe036.i [2022-12-13 17:21:04,134 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/data/52ce3dd7e/bb1b507b5e164e36a45ec4facd75016e/FLAGd92c5d84f [2022-12-13 17:21:04,145 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/data/52ce3dd7e/bb1b507b5e164e36a45ec4facd75016e [2022-12-13 17:21:04,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:21:04,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:21:04,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:21:04,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:21:04,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:21:04,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ac25bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04, skipping insertion in model container [2022-12-13 17:21:04,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:21:04,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:21:04,296 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_d02d16f7-7ff9-483f-adb4-fa425a9f7002/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-12-13 17:21:04,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:21:04,413 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:21:04,423 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_d02d16f7-7ff9-483f-adb4-fa425a9f7002/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-12-13 17:21:04,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:21:04,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:21:04,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:21:04,469 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:21:04,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04 WrapperNode [2022-12-13 17:21:04,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:21:04,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:21:04,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:21:04,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:21:04,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,499 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 17:21:04,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:21:04,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:21:04,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:21:04,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:21:04,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:21:04,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:21:04,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:21:04,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:21:04,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (1/1) ... [2022-12-13 17:21:04,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:21:04,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:21:04,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:21:04,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:21:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:21:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:21:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:21:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:21:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:21:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:21:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:21:04,585 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:21:04,681 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:21:04,683 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:21:04,818 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:21:04,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:21:04,836 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:21:04,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:04 BoogieIcfgContainer [2022-12-13 17:21:04,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:21:04,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:21:04,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:21:04,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:21:04,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:21:04" (1/3) ... [2022-12-13 17:21:04,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae1b0f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:21:04, skipping insertion in model container [2022-12-13 17:21:04,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:21:04" (2/3) ... [2022-12-13 17:21:04,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae1b0f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:21:04, skipping insertion in model container [2022-12-13 17:21:04,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:04" (3/3) ... [2022-12-13 17:21:04,844 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-12-13 17:21:04,851 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:21:04,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:21:04,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:21:04,859 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:21:04,899 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:21:04,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2022-12-13 17:21:04,953 INFO L130 PetriNetUnfolder]: 2/76 cut-off events. [2022-12-13 17:21:04,953 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:04,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 17:21:04,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 78 transitions, 166 flow [2022-12-13 17:21:04,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 76 transitions, 158 flow [2022-12-13 17:21:04,963 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:21:04,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 76 transitions, 158 flow [2022-12-13 17:21:04,975 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 76 transitions, 158 flow [2022-12-13 17:21:04,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 76 transitions, 158 flow [2022-12-13 17:21:04,998 INFO L130 PetriNetUnfolder]: 2/76 cut-off events. [2022-12-13 17:21:04,998 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:05,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 17:21:05,005 INFO L119 LiptonReduction]: Number of co-enabled transitions 1168 [2022-12-13 17:21:06,324 INFO L134 LiptonReduction]: Checked pairs total: 2795 [2022-12-13 17:21:06,325 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-12-13 17:21:06,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:21:06,342 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;@1dc1d670, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:21:06,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 17:21:06,345 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 17:21:06,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:21:06,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:21:06,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:21:06,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:21:06,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:21:06,349 INFO L85 PathProgramCache]: Analyzing trace with hash 272867168, now seen corresponding path program 1 times [2022-12-13 17:21:06,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:21:06,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775342665] [2022-12-13 17:21:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:21:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:21:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:21:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:21:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:21:06,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775342665] [2022-12-13 17:21:06,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775342665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:21:06,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:21:06,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:21:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766273308] [2022-12-13 17:21:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:21:06,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:21:06,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:21:06,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:21:06,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:21:06,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 145 [2022-12-13 17:21:06,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:21:06,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 145 [2022-12-13 17:21:06,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:21:06,645 INFO L130 PetriNetUnfolder]: 40/90 cut-off events. [2022-12-13 17:21:06,645 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:21:06,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 90 events. 40/90 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 274 event pairs, 11 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 178. Up to 59 conditions per place. [2022-12-13 17:21:06,647 INFO L137 encePairwiseOnDemand]: 138/145 looper letters, 17 selfloop transitions, 3 changer transitions 2/24 dead transitions. [2022-12-13 17:21:06,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 101 flow [2022-12-13 17:21:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:21:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:21:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2022-12-13 17:21:06,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5149425287356322 [2022-12-13 17:21:06,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2022-12-13 17:21:06,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2022-12-13 17:21:06,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:21:06,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2022-12-13 17:21:06,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,669 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 38 flow. Second operand 3 states and 224 transitions. [2022-12-13 17:21:06,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 101 flow [2022-12-13 17:21:06,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:21:06,673 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 53 flow [2022-12-13 17:21:06,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2022-12-13 17:21:06,676 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2022-12-13 17:21:06,677 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 53 flow [2022-12-13 17:21:06,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:21:06,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:21:06,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:21:06,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:21:06,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:21:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1762222558, now seen corresponding path program 1 times [2022-12-13 17:21:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:21:06,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413267422] [2022-12-13 17:21:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:21:06,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:21:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:21:06,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:21:06,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:21:06,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413267422] [2022-12-13 17:21:06,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413267422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:21:06,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:21:06,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:21:06,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740979350] [2022-12-13 17:21:06,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:21:06,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:21:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:21:06,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:21:06,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:21:06,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 145 [2022-12-13 17:21:06,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:21:06,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 145 [2022-12-13 17:21:06,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:21:06,829 INFO L130 PetriNetUnfolder]: 31/72 cut-off events. [2022-12-13 17:21:06,829 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 17:21:06,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 72 events. 31/72 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 198 event pairs, 11 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 176. Up to 40 conditions per place. [2022-12-13 17:21:06,830 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 15 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2022-12-13 17:21:06,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 95 flow [2022-12-13 17:21:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:21:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:21:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2022-12-13 17:21:06,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4896551724137931 [2022-12-13 17:21:06,834 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 284 transitions. [2022-12-13 17:21:06,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 284 transitions. [2022-12-13 17:21:06,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:21:06,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 284 transitions. [2022-12-13 17:21:06,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,838 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,839 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 53 flow. Second operand 4 states and 284 transitions. [2022-12-13 17:21:06,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 95 flow [2022-12-13 17:21:06,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:21:06,840 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 48 flow [2022-12-13 17:21:06,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2022-12-13 17:21:06,841 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2022-12-13 17:21:06,841 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 48 flow [2022-12-13 17:21:06,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:21:06,842 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:21:06,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:21:06,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:21:06,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:21:06,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1762222557, now seen corresponding path program 1 times [2022-12-13 17:21:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:21:06,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778213234] [2022-12-13 17:21:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:21:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:21:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:21:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:21:06,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:21:06,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778213234] [2022-12-13 17:21:06,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778213234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:21:06,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:21:06,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:21:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064983188] [2022-12-13 17:21:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:21:06,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:21:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:21:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:21:06,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:21:06,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 145 [2022-12-13 17:21:06,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:21:06,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 145 [2022-12-13 17:21:06,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:21:06,957 INFO L130 PetriNetUnfolder]: 27/62 cut-off events. [2022-12-13 17:21:06,957 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 17:21:06,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 62 events. 27/62 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 11 based on Foata normal form. 6/65 useless extension candidates. Maximal degree in co-relation 150. Up to 30 conditions per place. [2022-12-13 17:21:06,958 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-13 17:21:06,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 86 flow [2022-12-13 17:21:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:21:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:21:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2022-12-13 17:21:06,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4862068965517241 [2022-12-13 17:21:06,960 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 282 transitions. [2022-12-13 17:21:06,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 282 transitions. [2022-12-13 17:21:06,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:21:06,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 282 transitions. [2022-12-13 17:21:06,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.5) internal successors, (282), 4 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,964 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,964 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 48 flow. Second operand 4 states and 282 transitions. [2022-12-13 17:21:06,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 86 flow [2022-12-13 17:21:06,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 79 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:21:06,965 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-13 17:21:06,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-13 17:21:06,966 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2022-12-13 17:21:06,966 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2022-12-13 17:21:06,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:06,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 17:21:06,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 17:21:06,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 17:21:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 17:21:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 17:21:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 17:21:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 17:21:06,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 17:21:06,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 17:21:06,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 17:21:06,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:21:06,972 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 17:21:06,978 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:21:06,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:21:06,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:21:06 BasicIcfg [2022-12-13 17:21:06,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:21:06,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:21:06,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:21:06,982 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:21:06,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:21:04" (3/4) ... [2022-12-13 17:21:06,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:21:06,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 17:21:06,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 17:21:06,994 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 17:21:06,994 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:21:06,994 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:21:06,995 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:21:07,025 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:21:07,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:21:07,026 INFO L158 Benchmark]: Toolchain (without parser) took 2878.52ms. Allocated memory is still 157.3MB. Free memory was 114.8MB in the beginning and 107.1MB in the end (delta: 7.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-13 17:21:07,027 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:21:07,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.83ms. Allocated memory is still 157.3MB. Free memory was 114.8MB in the beginning and 92.2MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 17:21:07,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.08ms. Allocated memory is still 157.3MB. Free memory was 92.2MB in the beginning and 90.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:21:07,028 INFO L158 Benchmark]: Boogie Preprocessor took 21.99ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:21:07,028 INFO L158 Benchmark]: RCFGBuilder took 315.57ms. Allocated memory is still 157.3MB. Free memory was 88.9MB in the beginning and 75.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:21:07,028 INFO L158 Benchmark]: TraceAbstraction took 2142.09ms. Allocated memory is still 157.3MB. Free memory was 74.6MB in the beginning and 109.2MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:21:07,029 INFO L158 Benchmark]: Witness Printer took 43.76ms. Allocated memory is still 157.3MB. Free memory was 109.2MB in the beginning and 107.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:21:07,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.83ms. Allocated memory is still 157.3MB. Free memory was 114.8MB in the beginning and 92.2MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.08ms. Allocated memory is still 157.3MB. Free memory was 92.2MB in the beginning and 90.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.99ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.57ms. Allocated memory is still 157.3MB. Free memory was 88.9MB in the beginning and 75.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2142.09ms. Allocated memory is still 157.3MB. Free memory was 74.6MB in the beginning and 109.2MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.76ms. Allocated memory is still 157.3MB. Free memory was 109.2MB in the beginning and 107.1MB in the end (delta: 2.1MB). 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: 1.4s, 81 PlacesBefore, 23 PlacesAfterwards, 76 TransitionsBefore, 16 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 2795 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1688, independent: 1564, independent conditional: 0, independent unconditional: 1564, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 653, independent: 628, independent conditional: 0, independent unconditional: 628, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1688, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 653, unknown conditional: 0, unknown unconditional: 653] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 97 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 3 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:21:07,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d16f7-7ff9-483f-adb4-fa425a9f7002/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