./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:48:01,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:48:01,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:48:01,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:48:01,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:48:01,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:48:01,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:48:01,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:48:01,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:48:01,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:48:01,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:48:01,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:48:01,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:48:01,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:48:01,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:48:01,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:48:01,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:48:01,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:48:01,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:48:01,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:48:01,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:48:01,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:48:01,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:48:01,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:48:01,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:48:01,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:48:01,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:48:01,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:48:01,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:48:01,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:48:01,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:48:01,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:48:01,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:48:01,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:48:01,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:48:01,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:48:01,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:48:01,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:48:01,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:48:01,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:48:01,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:48:01,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:48:01,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:48:01,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:48:01,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:48:01,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:48:01,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:48:01,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:48:01,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:48:01,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:48:01,661 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:48:01,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:48:01,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:48:01,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:48:01,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:48:01,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:48:01,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:48:01,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:48:01,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:48:01,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:48:01,666 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:48:01,666 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:48:01,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:48:01,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:48:01,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:48:01,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:48:01,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:48:01,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:48:01,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:48:01,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:48:01,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:48:01,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:48:01,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:48:01,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:48:01,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:48:01,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:48:01,671 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:48:01,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:48:01,672 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_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2022-11-25 17:48:01,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:48:02,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:48:02,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:48:02,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:48:02,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:48:02,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix008.opt.i [2022-11-25 17:48:05,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:48:05,510 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:48:05,510 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2022-11-25 17:48:05,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/data/ca340b02a/da749c6bd8f04cd0831f5ae494e643a0/FLAGd588e9436 [2022-11-25 17:48:05,552 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/data/ca340b02a/da749c6bd8f04cd0831f5ae494e643a0 [2022-11-25 17:48:05,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:48:05,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:48:05,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:48:05,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:48:05,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:48:05,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:05" (1/1) ... [2022-11-25 17:48:05,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9187aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:05, skipping insertion in model container [2022-11-25 17:48:05,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:05" (1/1) ... [2022-11-25 17:48:05,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:48:05,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:48:05,813 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_c67f6563-eda0-4737-8d42-e88efd1a3b84/sv-benchmarks/c/pthread-wmm/mix008.opt.i[944,957] [2022-11-25 17:48:06,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:48:06,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:48:06,245 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_c67f6563-eda0-4737-8d42-e88efd1a3b84/sv-benchmarks/c/pthread-wmm/mix008.opt.i[944,957] [2022-11-25 17:48:06,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:48:06,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:48:06,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:48:06,420 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:48:06,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06 WrapperNode [2022-11-25 17:48:06,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:48:06,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:48:06,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:48:06,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:48:06,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,524 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-11-25 17:48:06,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:48:06,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:48:06,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:48:06,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:48:06,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,574 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:48:06,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:48:06,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:48:06,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:48:06,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (1/1) ... [2022-11-25 17:48:06,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:48:06,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:06,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:48:06,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:48:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:48:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:48:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:48:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:48:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:48:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:48:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:48:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:48:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:48:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:48:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:48:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 17:48:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 17:48:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:48:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:48:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:48:06,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:48:06,712 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:48:06,977 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:48:06,980 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:48:07,394 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:48:07,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:48:07,571 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:48:07,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:07 BoogieIcfgContainer [2022-11-25 17:48:07,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:48:07,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:48:07,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:48:07,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:48:07,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:48:05" (1/3) ... [2022-11-25 17:48:07,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669eae95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:07, skipping insertion in model container [2022-11-25 17:48:07,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:06" (2/3) ... [2022-11-25 17:48:07,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669eae95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:07, skipping insertion in model container [2022-11-25 17:48:07,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:07" (3/3) ... [2022-11-25 17:48:07,585 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2022-11-25 17:48:07,595 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:48:07,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:48:07,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:48:07,608 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:48:07,678 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:48:07,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 304 flow [2022-11-25 17:48:07,793 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-11-25 17:48:07,793 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:48:07,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-25 17:48:07,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 142 transitions, 304 flow [2022-11-25 17:48:07,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 138 transitions, 288 flow [2022-11-25 17:48:07,817 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:48:07,836 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 138 transitions, 288 flow [2022-11-25 17:48:07,839 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 138 transitions, 288 flow [2022-11-25 17:48:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 288 flow [2022-11-25 17:48:07,884 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-11-25 17:48:07,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:48:07,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-25 17:48:07,890 INFO L119 LiptonReduction]: Number of co-enabled transitions 3982 [2022-11-25 17:48:14,275 INFO L134 LiptonReduction]: Checked pairs total: 13232 [2022-11-25 17:48:14,275 INFO L136 LiptonReduction]: Total number of compositions: 118 [2022-11-25 17:48:14,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:48:14,301 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;@47ac95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:48:14,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-25 17:48:14,304 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 17:48:14,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:48:14,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:48:14,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:48:14,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:48:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash 18813637, now seen corresponding path program 1 times [2022-11-25 17:48:14,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:14,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169884852] [2022-11-25 17:48:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:14,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:14,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:14,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169884852] [2022-11-25 17:48:14,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169884852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:14,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:14,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:48:14,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707638850] [2022-11-25 17:48:14,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:14,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:14,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:48:14,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 260 [2022-11-25 17:48:14,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:14,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:48:14,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 260 [2022-11-25 17:48:14,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:48:16,539 INFO L130 PetriNetUnfolder]: 6649/9350 cut-off events. [2022-11-25 17:48:16,540 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2022-11-25 17:48:16,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18872 conditions, 9350 events. 6649/9350 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 52477 event pairs, 1861 based on Foata normal form. 226/7565 useless extension candidates. Maximal degree in co-relation 18860. Up to 8623 conditions per place. [2022-11-25 17:48:16,632 INFO L137 encePairwiseOnDemand]: 246/260 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2022-11-25 17:48:16,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 229 flow [2022-11-25 17:48:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:48:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2022-11-25 17:48:16,659 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5269230769230769 [2022-11-25 17:48:16,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2022-11-25 17:48:16,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2022-11-25 17:48:16,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:48:16,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2022-11-25 17:48:16,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:16,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:16,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:16,684 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 411 transitions. [2022-11-25 17:48:16,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 229 flow [2022-11-25 17:48:16,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 17:48:16,693 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 123 flow [2022-11-25 17:48:16,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2022-11-25 17:48:16,700 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2022-11-25 17:48:16,700 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 123 flow [2022-11-25 17:48:16,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:16,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:48:16,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:48:16,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:48:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1069650579, now seen corresponding path program 1 times [2022-11-25 17:48:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7159780] [2022-11-25 17:48:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:16,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:16,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7159780] [2022-11-25 17:48:16,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7159780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:16,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:16,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:48:16,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266253257] [2022-11-25 17:48:16,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:16,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:48:16,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:16,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:48:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:48:16,845 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 260 [2022-11-25 17:48:16,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:16,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:48:16,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 260 [2022-11-25 17:48:16,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:48:17,846 INFO L130 PetriNetUnfolder]: 3813/5378 cut-off events. [2022-11-25 17:48:17,846 INFO L131 PetriNetUnfolder]: For 326/338 co-relation queries the response was YES. [2022-11-25 17:48:17,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13383 conditions, 5378 events. 3813/5378 cut-off events. For 326/338 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 27603 event pairs, 909 based on Foata normal form. 918/5367 useless extension candidates. Maximal degree in co-relation 13372. Up to 4650 conditions per place. [2022-11-25 17:48:17,892 INFO L137 encePairwiseOnDemand]: 251/260 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2022-11-25 17:48:17,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 237 flow [2022-11-25 17:48:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:48:17,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:48:17,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2022-11-25 17:48:17,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4980769230769231 [2022-11-25 17:48:17,895 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2022-11-25 17:48:17,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2022-11-25 17:48:17,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:48:17,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2022-11-25 17:48:17,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:17,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:17,901 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:17,901 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 123 flow. Second operand 4 states and 518 transitions. [2022-11-25 17:48:17,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 237 flow [2022-11-25 17:48:17,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:48:17,904 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 112 flow [2022-11-25 17:48:17,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2022-11-25 17:48:17,905 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2022-11-25 17:48:17,906 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 112 flow [2022-11-25 17:48:17,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:17,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:48:17,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:17,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:48:17,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:48:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1200703289, now seen corresponding path program 1 times [2022-11-25 17:48:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73621160] [2022-11-25 17:48:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:17,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:18,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:18,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73621160] [2022-11-25 17:48:18,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73621160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:18,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:18,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:48:18,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411120981] [2022-11-25 17:48:18,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:18,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:48:18,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:18,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:48:18,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:48:18,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 260 [2022-11-25 17:48:18,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:48:18,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 260 [2022-11-25 17:48:18,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:48:18,715 INFO L130 PetriNetUnfolder]: 2366/3393 cut-off events. [2022-11-25 17:48:18,715 INFO L131 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES. [2022-11-25 17:48:18,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8344 conditions, 3393 events. 2366/3393 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 16109 event pairs, 511 based on Foata normal form. 0/3172 useless extension candidates. Maximal degree in co-relation 8332. Up to 1450 conditions per place. [2022-11-25 17:48:18,751 INFO L137 encePairwiseOnDemand]: 251/260 looper letters, 55 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2022-11-25 17:48:18,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 68 transitions, 326 flow [2022-11-25 17:48:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:48:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:48:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 536 transitions. [2022-11-25 17:48:18,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5153846153846153 [2022-11-25 17:48:18,755 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 536 transitions. [2022-11-25 17:48:18,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 536 transitions. [2022-11-25 17:48:18,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:48:18,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 536 transitions. [2022-11-25 17:48:18,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,761 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,761 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 112 flow. Second operand 4 states and 536 transitions. [2022-11-25 17:48:18,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 68 transitions, 326 flow [2022-11-25 17:48:18,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:48:18,765 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 164 flow [2022-11-25 17:48:18,766 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2022-11-25 17:48:18,766 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2022-11-25 17:48:18,767 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 164 flow [2022-11-25 17:48:18,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:48:18,768 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:18,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:48:18,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:48:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1911680358, now seen corresponding path program 1 times [2022-11-25 17:48:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:18,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851774764] [2022-11-25 17:48:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:18,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:18,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:18,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851774764] [2022-11-25 17:48:18,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851774764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:18,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:18,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:48:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84717151] [2022-11-25 17:48:18,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:18,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:48:18,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:18,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:48:18,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:48:18,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 260 [2022-11-25 17:48:18,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:18,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:48:18,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 260 [2022-11-25 17:48:18,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:48:19,630 INFO L130 PetriNetUnfolder]: 2087/2952 cut-off events. [2022-11-25 17:48:19,631 INFO L131 PetriNetUnfolder]: For 1992/1992 co-relation queries the response was YES. [2022-11-25 17:48:19,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 2952 events. 2087/2952 cut-off events. For 1992/1992 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13487 event pairs, 467 based on Foata normal form. 0/2917 useless extension candidates. Maximal degree in co-relation 8494. Up to 1216 conditions per place. [2022-11-25 17:48:19,654 INFO L137 encePairwiseOnDemand]: 251/260 looper letters, 63 selfloop transitions, 13 changer transitions 4/84 dead transitions. [2022-11-25 17:48:19,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 444 flow [2022-11-25 17:48:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:48:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:48:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 669 transitions. [2022-11-25 17:48:19,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5146153846153846 [2022-11-25 17:48:19,658 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 669 transitions. [2022-11-25 17:48:19,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 669 transitions. [2022-11-25 17:48:19,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:48:19,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 669 transitions. [2022-11-25 17:48:19,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:19,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:19,664 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:19,665 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 164 flow. Second operand 5 states and 669 transitions. [2022-11-25 17:48:19,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 444 flow [2022-11-25 17:48:19,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 426 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-25 17:48:19,677 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 188 flow [2022-11-25 17:48:19,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2022-11-25 17:48:19,679 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2022-11-25 17:48:19,680 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 188 flow [2022-11-25 17:48:19,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:19,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:48:19,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:19,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:48:19,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:48:19,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 648332783, now seen corresponding path program 1 times [2022-11-25 17:48:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:19,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182167885] [2022-11-25 17:48:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:19,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:19,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182167885] [2022-11-25 17:48:19,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182167885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:19,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:19,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:48:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802936785] [2022-11-25 17:48:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:19,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:48:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:48:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:19,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 260 [2022-11-25 17:48:19,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:19,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:48:19,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 260 [2022-11-25 17:48:19,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:48:20,626 INFO L130 PetriNetUnfolder]: 2060/2905 cut-off events. [2022-11-25 17:48:20,627 INFO L131 PetriNetUnfolder]: For 2514/2514 co-relation queries the response was YES. [2022-11-25 17:48:20,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8588 conditions, 2905 events. 2060/2905 cut-off events. For 2514/2514 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13337 event pairs, 467 based on Foata normal form. 16/2902 useless extension candidates. Maximal degree in co-relation 8574. Up to 1216 conditions per place. [2022-11-25 17:48:20,638 INFO L137 encePairwiseOnDemand]: 251/260 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-11-25 17:48:20,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 396 flow [2022-11-25 17:48:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:48:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:48:20,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2022-11-25 17:48:20,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4987179487179487 [2022-11-25 17:48:20,642 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2022-11-25 17:48:20,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2022-11-25 17:48:20,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:48:20,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2022-11-25 17:48:20,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:20,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:20,650 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:20,650 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 188 flow. Second operand 6 states and 778 transitions. [2022-11-25 17:48:20,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 396 flow [2022-11-25 17:48:20,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-25 17:48:20,720 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2022-11-25 17:48:20,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2022-11-25 17:48:20,724 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2022-11-25 17:48:20,724 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2022-11-25 17:48:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:20,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-25 17:48:20,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-25 17:48:20,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-25 17:48:20,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-25 17:48:20,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-25 17:48:20,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-25 17:48:20,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-25 17:48:20,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-25 17:48:20,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-25 17:48:20,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-25 17:48:20,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-25 17:48:20,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-25 17:48:20,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-25 17:48:20,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-25 17:48:20,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-25 17:48:20,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-25 17:48:20,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-25 17:48:20,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-25 17:48:20,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-25 17:48:20,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-25 17:48:20,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:48:20,737 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 17:48:20,743 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:48:20,743 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:48:20,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:48:20 BasicIcfg [2022-11-25 17:48:20,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:48:20,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:48:20,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:48:20,751 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:48:20,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:07" (3/4) ... [2022-11-25 17:48:20,755 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:48:20,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 17:48:20,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 17:48:20,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 17:48:20,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-25 17:48:20,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-25 17:48:20,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 17:48:20,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:48:20,773 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:48:20,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:48:20,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:48:20,835 INFO L158 Benchmark]: Toolchain (without parser) took 15277.79ms. Allocated memory was 205.5MB in the beginning and 469.8MB in the end (delta: 264.2MB). Free memory was 175.8MB in the beginning and 344.2MB in the end (delta: -168.4MB). Peak memory consumption was 95.8MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,835 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:48:20,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 861.93ms. Allocated memory is still 205.5MB. Free memory was 175.5MB in the beginning and 147.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.36ms. Allocated memory is still 205.5MB. Free memory was 146.6MB in the beginning and 143.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,836 INFO L158 Benchmark]: Boogie Preprocessor took 80.03ms. Allocated memory is still 205.5MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,836 INFO L158 Benchmark]: RCFGBuilder took 968.24ms. Allocated memory is still 205.5MB. Free memory was 141.6MB in the beginning and 143.9MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,837 INFO L158 Benchmark]: TraceAbstraction took 13173.01ms. Allocated memory was 205.5MB in the beginning and 469.8MB in the end (delta: 264.2MB). Free memory was 143.0MB in the beginning and 347.4MB in the end (delta: -204.4MB). Peak memory consumption was 296.4MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,837 INFO L158 Benchmark]: Witness Printer took 83.42ms. Allocated memory is still 469.8MB. Free memory was 347.4MB in the beginning and 344.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:48:20,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 861.93ms. Allocated memory is still 205.5MB. Free memory was 175.5MB in the beginning and 147.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.36ms. Allocated memory is still 205.5MB. Free memory was 146.6MB in the beginning and 143.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.03ms. Allocated memory is still 205.5MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 968.24ms. Allocated memory is still 205.5MB. Free memory was 141.6MB in the beginning and 143.9MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13173.01ms. Allocated memory was 205.5MB in the beginning and 469.8MB in the end (delta: 264.2MB). Free memory was 143.0MB in the beginning and 347.4MB in the end (delta: -204.4MB). Peak memory consumption was 296.4MB. Max. memory is 16.1GB. * Witness Printer took 83.42ms. Allocated memory is still 469.8MB. Free memory was 347.4MB in the beginning and 344.2MB 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: 6.4s, 149 PlacesBefore, 47 PlacesAfterwards, 138 TransitionsBefore, 35 TransitionsAfterwards, 3982 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 TotalNumberOfCompositions, 13232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5210, independent: 4887, independent conditional: 0, independent unconditional: 4887, dependent: 323, dependent conditional: 0, dependent unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2762, independent: 2685, independent conditional: 0, independent unconditional: 2685, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2762, independent: 2617, independent conditional: 0, independent unconditional: 2617, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 145, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 605, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 464, dependent conditional: 0, dependent unconditional: 464, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5210, independent: 2202, independent conditional: 0, independent unconditional: 2202, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 2762, unknown conditional: 0, unknown unconditional: 2762] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 294, Positive conditional cache size: 0, Positive unconditional cache size: 294, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: 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 9 procedures, 184 locations, 20 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: 13.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 12 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:48:20,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c67f6563-eda0-4737-8d42-e88efd1a3b84/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE