./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:03:39,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:39,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:39,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:39,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:39,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:39,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:39,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:39,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:39,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:39,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:39,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:39,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:39,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:39,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:39,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:39,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:39,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:39,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:39,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:39,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:39,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:39,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:39,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:39,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:39,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:39,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:39,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:39,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:39,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:39,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:39,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:39,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:39,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:39,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:39,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:39,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:39,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:39,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:39,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:39,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:39,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:03:39,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:39,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:39,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:39,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:39,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:39,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:39,317 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:39,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:39,317 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:39,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:03:39,319 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:39,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:39,319 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:03:39,320 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:03:39,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:39,320 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:03:39,321 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:03:39,321 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:03:39,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:39,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:03:39,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:39,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:03:39,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:03:39,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:39,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:39,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:39,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:39,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:39,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:03:39,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:39,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:39,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:39,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:39,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:39,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:39,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:39,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:03:39,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:39,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:39,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:03:39,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:03:39,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:39,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:39,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 [2022-11-26 00:03:39,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:39,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:39,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:39,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:39,700 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:39,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2022-11-26 00:03:42,848 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:43,173 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:43,177 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2022-11-26 00:03:43,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/data/cd0d94e54/82a8bc9e26f1462e8d7e8392f15e08ce/FLAGc85473ac8 [2022-11-26 00:03:43,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/data/cd0d94e54/82a8bc9e26f1462e8d7e8392f15e08ce [2022-11-26 00:03:43,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:43,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:43,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:43,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:43,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:43,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a3a2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43, skipping insertion in model container [2022-11-26 00:03:43,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:43,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:43,432 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_2517441e-401b-4c16-98e7-685f49665e6a/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2022-11-26 00:03:43,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:43,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:43,774 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_2517441e-401b-4c16-98e7-685f49665e6a/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2022-11-26 00:03:43,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:03:43,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:03:43,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:43,866 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:43,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43 WrapperNode [2022-11-26 00:03:43,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:43,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:43,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:43,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:43,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,919 INFO L138 Inliner]: procedures = 176, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 166 [2022-11-26 00:03:43,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:43,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:43,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:43,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:43,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,949 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:43,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:43,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:43,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:43,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2022-11-26 00:03:43,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:43,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:44,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:44,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:44,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:03:44,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:03:44,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:03:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:03:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:03:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:03:44,053 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:03:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:03:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:03:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:03:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:03:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:03:44,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:03:44,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:44,057 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:03:44,227 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:44,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:44,754 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:45,147 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:45,147 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:03:45,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:45 BoogieIcfgContainer [2022-11-26 00:03:45,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:45,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:45,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:45,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:45,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:43" (1/3) ... [2022-11-26 00:03:45,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78456289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:45, skipping insertion in model container [2022-11-26 00:03:45,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (2/3) ... [2022-11-26 00:03:45,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78456289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:45, skipping insertion in model container [2022-11-26 00:03:45,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:45" (3/3) ... [2022-11-26 00:03:45,158 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_rmo.oepc.i [2022-11-26 00:03:45,170 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:03:45,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:45,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:03:45,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:03:45,253 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:03:45,299 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:03:45,322 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 135 transitions, 285 flow [2022-11-26 00:03:45,328 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 135 transitions, 285 flow [2022-11-26 00:03:45,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 285 flow [2022-11-26 00:03:45,451 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-26 00:03:45,452 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:03:45,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-26 00:03:45,460 INFO L119 LiptonReduction]: Number of co-enabled transitions 2366 [2022-11-26 00:04:00,206 INFO L134 LiptonReduction]: Checked pairs total: 8064 [2022-11-26 00:04:00,206 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-26 00:04:00,219 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2022-11-26 00:04:00,349 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:00,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:04:00,388 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=FINITE_AUTOMATA, 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;@4b6379f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:04:00,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-26 00:04:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:04:00,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:00,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:04:00,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:00,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash 23952489, now seen corresponding path program 1 times [2022-11-26 00:04:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:00,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533506498] [2022-11-26 00:04:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:00,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:00,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533506498] [2022-11-26 00:04:00,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533506498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:00,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:00,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:04:00,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810126039] [2022-11-26 00:04:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:00,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:04:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:04:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:00,905 INFO L87 Difference]: Start difference. First operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:01,087 INFO L93 Difference]: Finished difference Result 606 states and 1709 transitions. [2022-11-26 00:04:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:04:01,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-26 00:04:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:01,106 INFO L225 Difference]: With dead ends: 606 [2022-11-26 00:04:01,106 INFO L226 Difference]: Without dead ends: 606 [2022-11-26 00:04:01,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:01,111 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:01,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-26 00:04:01,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2022-11-26 00:04:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 588 states have (on average 2.9064625850340136) internal successors, (1709), 605 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 1709 transitions. [2022-11-26 00:04:01,214 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 1709 transitions. Word has length 4 [2022-11-26 00:04:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:01,215 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 1709 transitions. [2022-11-26 00:04:01,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 1709 transitions. [2022-11-26 00:04:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:04:01,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:01,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:01,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:04:01,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash 417590641, now seen corresponding path program 1 times [2022-11-26 00:04:01,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:01,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121832378] [2022-11-26 00:04:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:01,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:01,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:01,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121832378] [2022-11-26 00:04:01,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121832378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:01,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:01,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:04:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060699544] [2022-11-26 00:04:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:01,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:04:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:04:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:01,469 INFO L87 Difference]: Start difference. First operand 606 states and 1709 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:01,615 INFO L93 Difference]: Finished difference Result 474 states and 1361 transitions. [2022-11-26 00:04:01,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:04:01,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-11-26 00:04:01,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:01,620 INFO L225 Difference]: With dead ends: 474 [2022-11-26 00:04:01,620 INFO L226 Difference]: Without dead ends: 474 [2022-11-26 00:04:01,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:01,622 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:01,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 8 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-26 00:04:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2022-11-26 00:04:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 468 states have (on average 2.908119658119658) internal successors, (1361), 473 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1361 transitions. [2022-11-26 00:04:01,647 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1361 transitions. Word has length 10 [2022-11-26 00:04:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:01,648 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 1361 transitions. [2022-11-26 00:04:01,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1361 transitions. [2022-11-26 00:04:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:04:01,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:01,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:01,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:04:01,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:01,651 INFO L85 PathProgramCache]: Analyzing trace with hash 60328865, now seen corresponding path program 1 times [2022-11-26 00:04:01,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:01,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606633359] [2022-11-26 00:04:01,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:01,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:01,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:01,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:01,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606633359] [2022-11-26 00:04:01,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606633359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:01,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:01,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:04:01,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699795167] [2022-11-26 00:04:01,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:01,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:04:01,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:01,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:04:01,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:01,741 INFO L87 Difference]: Start difference. First operand 474 states and 1361 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:01,882 INFO L93 Difference]: Finished difference Result 378 states and 1100 transitions. [2022-11-26 00:04:01,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:04:01,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-11-26 00:04:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:01,886 INFO L225 Difference]: With dead ends: 378 [2022-11-26 00:04:01,886 INFO L226 Difference]: Without dead ends: 378 [2022-11-26 00:04:01,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:01,887 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:01,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:01,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-26 00:04:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2022-11-26 00:04:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 375 states have (on average 2.933333333333333) internal successors, (1100), 377 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1100 transitions. [2022-11-26 00:04:01,907 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1100 transitions. Word has length 11 [2022-11-26 00:04:01,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:01,907 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 1100 transitions. [2022-11-26 00:04:01,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:01,908 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1100 transitions. [2022-11-26 00:04:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:04:01,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:01,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:01,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:04:01,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:01,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1955682577, now seen corresponding path program 1 times [2022-11-26 00:04:01,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:01,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761337683] [2022-11-26 00:04:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:01,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:02,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:02,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761337683] [2022-11-26 00:04:02,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761337683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:02,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:02,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:04:02,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568692488] [2022-11-26 00:04:02,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:02,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:04:02,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:02,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:04:02,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:02,169 INFO L87 Difference]: Start difference. First operand 378 states and 1100 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:02,295 INFO L93 Difference]: Finished difference Result 366 states and 1079 transitions. [2022-11-26 00:04:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:04:02,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2022-11-26 00:04:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:02,296 INFO L225 Difference]: With dead ends: 366 [2022-11-26 00:04:02,296 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:04:02,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:02,297 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 29 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:02,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 6 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:04:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:04:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:04:02,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-26 00:04:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:02,299 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:04:02,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:02,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:04:02,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:04:02,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-26 00:04:02,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-26 00:04:02,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-26 00:04:02,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-26 00:04:02,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-26 00:04:02,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-26 00:04:02,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-26 00:04:02,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-26 00:04:02,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-26 00:04:02,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-26 00:04:02,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-26 00:04:02,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-26 00:04:02,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-26 00:04:02,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-26 00:04:02,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-26 00:04:02,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:04:02,312 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:04:02,317 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:04:02,317 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:04:02,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:02 BasicIcfg [2022-11-26 00:04:02,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:04:02,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:04:02,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:04:02,321 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:04:02,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:45" (3/4) ... [2022-11-26 00:04:02,324 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:04:02,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-26 00:04:02,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-26 00:04:02,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-26 00:04:02,337 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2022-11-26 00:04:02,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-26 00:04:02,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:04:02,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:04:02,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:04:02,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:04:02,401 INFO L158 Benchmark]: Toolchain (without parser) took 19190.60ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 131.2MB in the beginning and 120.3MB in the end (delta: 10.9MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,401 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 88.6MB in the beginning and 88.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:02,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.64ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 103.8MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.17ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 101.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,402 INFO L158 Benchmark]: Boogie Preprocessor took 35.13ms. Allocated memory is still 163.6MB. Free memory was 101.3MB in the beginning and 98.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,403 INFO L158 Benchmark]: RCFGBuilder took 1194.57ms. Allocated memory is still 163.6MB. Free memory was 98.7MB in the beginning and 87.6MB in the end (delta: 11.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,403 INFO L158 Benchmark]: TraceAbstraction took 17167.92ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 87.1MB in the beginning and 124.5MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:02,404 INFO L158 Benchmark]: Witness Printer took 80.04ms. Allocated memory is still 197.1MB. Free memory was 124.5MB in the beginning and 120.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:04:02,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 88.6MB in the beginning and 88.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.64ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 103.8MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.17ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 101.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.13ms. Allocated memory is still 163.6MB. Free memory was 101.3MB in the beginning and 98.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1194.57ms. Allocated memory is still 163.6MB. Free memory was 98.7MB in the beginning and 87.6MB in the end (delta: 11.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17167.92ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 87.1MB in the beginning and 124.5MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.04ms. Allocated memory is still 197.1MB. Free memory was 124.5MB in the beginning and 120.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9s, 143 PlacesBefore, 38 PlacesAfterwards, 135 TransitionsBefore, 29 TransitionsAfterwards, 2366 CoEnabledTransitionPairs, 8 FixpointIterations, 59 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 8064 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3026, independent: 2733, independent conditional: 0, independent unconditional: 2733, dependent: 293, dependent conditional: 0, dependent unconditional: 293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1726, independent: 1666, independent conditional: 0, independent unconditional: 1666, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1726, independent: 1617, independent conditional: 0, independent unconditional: 1617, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 876, dependent conditional: 0, dependent unconditional: 876, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3026, independent: 1067, independent conditional: 0, independent unconditional: 1067, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 1726, unknown conditional: 0, unknown unconditional: 1726] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 165 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 10 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1102occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:04:02,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2517441e-401b-4c16-98e7-685f49665e6a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE