./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi007_tso.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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi007_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/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 62e921ac3b02bdecb866366797768eb8fcdb22a87147dc14adf7fddb42ab9cb2 --- 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 20:49:58,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:49:58,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:49:58,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:49:58,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:49:58,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:49:58,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:49:58,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:49:58,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:49:58,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:49:58,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:49:58,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:49:58,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:49:58,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:49:58,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:49:58,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:49:58,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:49:58,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:49:58,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:49:58,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:49:58,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:49:58,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:49:58,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:49:58,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:49:58,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:49:58,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:49:58,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:49:58,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:49:58,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:49:58,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:49:58,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:49:58,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:49:58,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:49:58,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:49:58,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:49:58,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:49:58,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:49:58,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:49:58,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:49:58,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:49:58,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:49:58,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:49:58,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:49:58,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:49:58,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:49:58,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:49:58,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:49:58,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:49:58,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:49:58,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:49:58,210 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:49:58,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:49:58,211 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:49:58,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:49:58,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:49:58,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:49:58,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:49:58,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:49:58,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:58,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:49:58,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:49:58,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:49:58,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:49:58,214 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:49:58,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:49:58,214 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:49:58,214 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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62e921ac3b02bdecb866366797768eb8fcdb22a87147dc14adf7fddb42ab9cb2 [2022-12-13 20:49:58,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:49:58,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:49:58,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:49:58,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:49:58,430 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:49:58,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/rfi007_tso.i [2022-12-13 20:50:00,997 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:50:01,188 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:50:01,189 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/sv-benchmarks/c/pthread-wmm/rfi007_tso.i [2022-12-13 20:50:01,197 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/data/7e954bf88/8b1728a8f06d421e9029ec8225359b7d/FLAGd3b600cd2 [2022-12-13 20:50:01,591 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/data/7e954bf88/8b1728a8f06d421e9029ec8225359b7d [2022-12-13 20:50:01,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:50:01,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:50:01,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:50:01,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:50:01,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:50:01,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:50:01" (1/1) ... [2022-12-13 20:50:01,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f255f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:01, skipping insertion in model container [2022-12-13 20:50:01,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:50:01" (1/1) ... [2022-12-13 20:50:01,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:50:01,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:50:01,765 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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/sv-benchmarks/c/pthread-wmm/rfi007_tso.i[944,957] [2022-12-13 20:50:01,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:50:01,925 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:50:01,934 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_f41410fc-7b36-4e87-99ee-fbede2f28b9d/sv-benchmarks/c/pthread-wmm/rfi007_tso.i[944,957] [2022-12-13 20:50:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:50:01,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:50:01,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:50:02,011 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:50:02,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02 WrapperNode [2022-12-13 20:50:02,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:50:02,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:50:02,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:50:02,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:50:02,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,067 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2022-12-13 20:50:02,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:50:02,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:50:02,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:50:02,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:50:02,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:50:02,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:50:02,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:50:02,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:50:02,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (1/1) ... [2022-12-13 20:50:02,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:50:02,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:50:02,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:50:02,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:50:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:50:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:50:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:50:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:50:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:50:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 20:50:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 20:50:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 20:50:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 20:50:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:50:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:50:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:50:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:50:02,159 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 20:50:02,262 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:50:02,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:50:02,527 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:50:02,645 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:50:02,646 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:50:02,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:50:02 BoogieIcfgContainer [2022-12-13 20:50:02,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:50:02,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:50:02,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:50:02,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:50:02,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:50:01" (1/3) ... [2022-12-13 20:50:02,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b5fb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:50:02, skipping insertion in model container [2022-12-13 20:50:02,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:50:02" (2/3) ... [2022-12-13 20:50:02,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b5fb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:50:02, skipping insertion in model container [2022-12-13 20:50:02,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:50:02" (3/3) ... [2022-12-13 20:50:02,657 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi007_tso.i [2022-12-13 20:50:02,666 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:50:02,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:50:02,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 20:50:02,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:50:02,716 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:50:02,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2022-12-13 20:50:02,789 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-13 20:50:02,789 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:50:02,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 20:50:02,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 206 flow [2022-12-13 20:50:02,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 198 flow [2022-12-13 20:50:02,798 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:50:02,805 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 96 transitions, 198 flow [2022-12-13 20:50:02,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 96 transitions, 198 flow [2022-12-13 20:50:02,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 198 flow [2022-12-13 20:50:02,822 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-13 20:50:02,823 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:50:02,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 20:50:02,824 INFO L119 LiptonReduction]: Number of co-enabled transitions 1446 [2022-12-13 20:50:05,006 INFO L134 LiptonReduction]: Checked pairs total: 4794 [2022-12-13 20:50:05,006 INFO L136 LiptonReduction]: Total number of compositions: 84 [2022-12-13 20:50:05,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:50:05,022 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;@73236bf1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:50:05,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 20:50:05,026 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2022-12-13 20:50:05,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:50:05,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:50:05,026 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:50:05,027 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 20:50:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash 998993091, now seen corresponding path program 1 times [2022-12-13 20:50:05,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:05,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302214678] [2022-12-13 20:50:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:05,211 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 20:50:05,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302214678] [2022-12-13 20:50:05,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302214678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:05,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:50:05,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:50:05,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915221977] [2022-12-13 20:50:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:05,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:50:05,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:50:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:50:05,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 182 [2022-12-13 20:50:05,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 20:50:05,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:50:05,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 182 [2022-12-13 20:50:05,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:50:05,364 INFO L130 PetriNetUnfolder]: 97/210 cut-off events. [2022-12-13 20:50:05,364 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 20:50:05,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 210 events. 97/210 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 771 event pairs, 47 based on Foata normal form. 24/197 useless extension candidates. Maximal degree in co-relation 416. Up to 145 conditions per place. [2022-12-13 20:50:05,367 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 25 selfloop transitions, 3 changer transitions 2/32 dead transitions. [2022-12-13 20:50:05,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 133 flow [2022-12-13 20:50:05,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:50:05,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:50:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2022-12-13 20:50:05,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5073260073260073 [2022-12-13 20:50:05,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2022-12-13 20:50:05,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2022-12-13 20:50:05,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:50:05,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2022-12-13 20:50:05,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 20:50:05,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 20:50:05,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 20:50:05,392 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 277 transitions. [2022-12-13 20:50:05,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 133 flow [2022-12-13 20:50:05,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:50:05,395 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 67 flow [2022-12-13 20:50:05,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 20:50:05,399 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 20:50:05,399 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 67 flow [2022-12-13 20:50:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 20:50:05,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:50:05,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:05,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:50:05,400 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 20:50:05,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1456223205, now seen corresponding path program 1 times [2022-12-13 20:50:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:05,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680256083] [2022-12-13 20:50:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:05,565 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 20:50:05,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:05,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680256083] [2022-12-13 20:50:05,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680256083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:05,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:50:05,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:50:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070231774] [2022-12-13 20:50:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:05,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:50:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:05,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:50:05,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:50:05,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 182 [2022-12-13 20:50:05,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 20:50:05,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:50:05,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 182 [2022-12-13 20:50:05,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:50:05,668 INFO L130 PetriNetUnfolder]: 76/171 cut-off events. [2022-12-13 20:50:05,669 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 20:50:05,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 171 events. 76/171 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 599 event pairs, 35 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 391. Up to 105 conditions per place. [2022-12-13 20:50:05,670 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 23 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2022-12-13 20:50:05,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 129 flow [2022-12-13 20:50:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:50:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:50:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2022-12-13 20:50:05,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47802197802197804 [2022-12-13 20:50:05,672 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2022-12-13 20:50:05,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2022-12-13 20:50:05,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:50:05,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2022-12-13 20:50:05,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 20:50:05,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 20:50:05,675 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 20:50:05,675 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 67 flow. Second operand 4 states and 348 transitions. [2022-12-13 20:50:05,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 129 flow [2022-12-13 20:50:05,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:50:05,676 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 62 flow [2022-12-13 20:50:05,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2022-12-13 20:50:05,677 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 20:50:05,677 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 62 flow [2022-12-13 20:50:05,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 20:50:05,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:50:05,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:05,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:50:05,678 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 20:50:05,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:05,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1456223204, now seen corresponding path program 1 times [2022-12-13 20:50:05,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:05,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572101576] [2022-12-13 20:50:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:05,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:05,767 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 20:50:05,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:05,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572101576] [2022-12-13 20:50:05,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572101576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:05,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:50:05,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:50:05,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534344412] [2022-12-13 20:50:05,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:05,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:50:05,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:05,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:50:05,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:50:05,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 182 [2022-12-13 20:50:05,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 20:50:05,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:50:05,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 182 [2022-12-13 20:50:05,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:50:05,833 INFO L130 PetriNetUnfolder]: 46/101 cut-off events. [2022-12-13 20:50:05,833 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-13 20:50:05,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 101 events. 46/101 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 304 event pairs, 27 based on Foata normal form. 11/111 useless extension candidates. Maximal degree in co-relation 230. Up to 58 conditions per place. [2022-12-13 20:50:05,834 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-12-13 20:50:05,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 102 flow [2022-12-13 20:50:05,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:50:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:50:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 343 transitions. [2022-12-13 20:50:05,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47115384615384615 [2022-12-13 20:50:05,836 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 343 transitions. [2022-12-13 20:50:05,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 343 transitions. [2022-12-13 20:50:05,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:50:05,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 343 transitions. [2022-12-13 20:50:05,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:50:05,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 20:50:05,841 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 20:50:05,841 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 62 flow. Second operand 4 states and 343 transitions. [2022-12-13 20:50:05,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 102 flow [2022-12-13 20:50:05,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:50:05,842 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2022-12-13 20:50:05,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2022-12-13 20:50:05,843 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -5 predicate places. [2022-12-13 20:50:05,843 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2022-12-13 20:50:05,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 20:50:05,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 20:50:05,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 20:50:05,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 20:50:05,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 20:50:05,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 20:50:05,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 20:50:05,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 20:50:05,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 20:50:05,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 20:50:05,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 20:50:05,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:50:05,849 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 20:50:05,854 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:50:05,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:50:05,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:50:05 BasicIcfg [2022-12-13 20:50:05,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:50:05,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:50:05,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:50:05,858 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:50:05,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:50:02" (3/4) ... [2022-12-13 20:50:05,861 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:50:05,866 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 20:50:05,866 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 20:50:05,870 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-12-13 20:50:05,871 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 20:50:05,871 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 20:50:05,871 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:50:05,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:50:05,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:50:05,908 INFO L158 Benchmark]: Toolchain (without parser) took 4306.94ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.6MB in the beginning and 97.4MB in the end (delta: -15.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,908 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:50:05,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.02ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 55.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.41ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 55.3MB in the beginning and 114.3MB in the end (delta: -59.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,909 INFO L158 Benchmark]: Boogie Preprocessor took 30.93ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 114.0MB in the end (delta: 226.7kB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,909 INFO L158 Benchmark]: RCFGBuilder took 548.84ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 76.1MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,909 INFO L158 Benchmark]: TraceAbstraction took 3206.88ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 100.6MB in the end (delta: -25.1MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,909 INFO L158 Benchmark]: Witness Printer took 49.43ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 97.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:50:05,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.02ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 55.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.41ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 55.3MB in the beginning and 114.3MB in the end (delta: -59.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.93ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 114.0MB in the end (delta: 226.7kB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * RCFGBuilder took 548.84ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 76.1MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3206.88ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 100.6MB in the end (delta: -25.1MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Witness Printer took 49.43ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 97.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 101 PlacesBefore, 29 PlacesAfterwards, 96 TransitionsBefore, 23 TransitionsAfterwards, 1446 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 4794 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1794, independent: 1600, independent conditional: 0, independent unconditional: 1600, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 799, independent: 765, independent conditional: 0, independent unconditional: 765, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1794, independent: 835, independent conditional: 0, independent unconditional: 835, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 799, unknown conditional: 0, unknown unconditional: 799] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: 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, 120 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 8 mSDtfsCounter, 127 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=67occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 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 20:50:05,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41410fc-7b36-4e87-99ee-fbede2f28b9d/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