./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:22:15,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:22:15,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:22:15,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:22:15,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:22:15,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:22:15,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:22:15,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:22:15,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:22:15,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:22:15,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:22:15,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:22:15,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:22:15,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:22:15,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:22:15,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:22:15,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:22:15,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:22:15,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:22:15,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:22:15,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:22:15,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:22:15,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:22:15,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:22:15,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:22:15,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:22:15,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:22:15,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:22:15,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:22:15,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:22:15,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:22:15,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:22:15,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:22:15,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:22:15,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:22:15,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:22:15,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:22:15,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:22:15,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:22:15,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:22:15,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:22:15,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 22:22:15,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:22:15,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:22:15,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:22:15,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:22:15,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:22:15,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:22:15,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:22:15,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:22:15,575 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:22:15,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:22:15,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:22:15,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:22:15,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:22:15,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:22:15,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:22:15,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:22:15,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:22:15,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:22:15,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:22:15,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:22:15,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:22:15,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:22:15,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:22:15,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:22:15,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:22:15,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:22:15,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:22:15,580 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:22:15,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:22:15,580 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:22:15,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:22:15,580 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:22:15,580 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_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf [2022-12-13 22:22:15,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:22:15,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:22:15,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:22:15,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:22:15,804 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:22:15,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2022-12-13 22:22:18,292 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:22:18,530 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:22:18,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2022-12-13 22:22:18,547 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/data/01ff4dccb/a41247e1f3c44fe4b3cc2dae526dab64/FLAG2cc1d0c61 [2022-12-13 22:22:18,875 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/data/01ff4dccb/a41247e1f3c44fe4b3cc2dae526dab64 [2022-12-13 22:22:18,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:22:18,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:22:18,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:22:18,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:22:18,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:22:18,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:22:18" (1/1) ... [2022-12-13 22:22:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c0091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:18, skipping insertion in model container [2022-12-13 22:22:18,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:22:18" (1/1) ... [2022-12-13 22:22:18,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:22:18,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:22:19,051 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_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/sv-benchmarks/c/pthread-wmm/mix031.oepc.i[945,958] [2022-12-13 22:22:19,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:22:19,182 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:22:19,190 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_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/sv-benchmarks/c/pthread-wmm/mix031.oepc.i[945,958] [2022-12-13 22:22:19,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:22:19,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:22:19,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:22:19,244 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:22:19,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19 WrapperNode [2022-12-13 22:22:19,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:22:19,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:22:19,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:22:19,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:22:19,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,276 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 125 [2022-12-13 22:22:19,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:22:19,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:22:19,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:22:19,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:22:19,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,303 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:22:19,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:22:19,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:22:19,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:22:19,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (1/1) ... [2022-12-13 22:22:19,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:22:19,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:22:19,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:22:19,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:22:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:22:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 22:22:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:22:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:22:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:22:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 22:22:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 22:22:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 22:22:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 22:22:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:22:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 22:22:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:22:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:22:19,369 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:22:19,477 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:22:19,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:22:19,711 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:22:19,811 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:22:19,811 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:22:19,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:22:19 BoogieIcfgContainer [2022-12-13 22:22:19,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:22:19,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:22:19,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:22:19,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:22:19,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:22:18" (1/3) ... [2022-12-13 22:22:19,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79baf4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:22:19, skipping insertion in model container [2022-12-13 22:22:19,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:22:19" (2/3) ... [2022-12-13 22:22:19,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79baf4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:22:19, skipping insertion in model container [2022-12-13 22:22:19,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:22:19" (3/3) ... [2022-12-13 22:22:19,819 INFO L112 eAbstractionObserver]: Analyzing ICFG mix031.oepc.i [2022-12-13 22:22:19,825 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:22:19,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:22:19,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 22:22:19,832 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:22:19,866 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 22:22:19,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 105 transitions, 220 flow [2022-12-13 22:22:19,932 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2022-12-13 22:22:19,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:22:19,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 22:22:19,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 105 transitions, 220 flow [2022-12-13 22:22:19,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 103 transitions, 212 flow [2022-12-13 22:22:19,941 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:22:19,948 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 103 transitions, 212 flow [2022-12-13 22:22:19,950 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 103 transitions, 212 flow [2022-12-13 22:22:19,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 103 transitions, 212 flow [2022-12-13 22:22:19,967 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2022-12-13 22:22:19,968 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:22:19,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 22:22:19,969 INFO L119 LiptonReduction]: Number of co-enabled transitions 1716 [2022-12-13 22:22:22,408 INFO L134 LiptonReduction]: Checked pairs total: 5391 [2022-12-13 22:22:22,409 INFO L136 LiptonReduction]: Total number of compositions: 89 [2022-12-13 22:22:22,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:22:22,424 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;@7411ec8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:22:22,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 22:22:22,428 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2022-12-13 22:22:22,428 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:22:22,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:22:22,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:22:22,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 22:22:22,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:22:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1976950503, now seen corresponding path program 1 times [2022-12-13 22:22:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:22:22,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214179655] [2022-12-13 22:22:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:22:22,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:22:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:22:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:22:22,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:22:22,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214179655] [2022-12-13 22:22:22,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214179655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:22:22,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:22:22,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:22:22,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516257113] [2022-12-13 22:22:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:22:22,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:22:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:22:22,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:22:22,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:22:22,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 194 [2022-12-13 22:22:22,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:22,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:22:22,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 194 [2022-12-13 22:22:22,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:22:22,842 INFO L130 PetriNetUnfolder]: 189/340 cut-off events. [2022-12-13 22:22:22,843 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 22:22:22,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 340 events. 189/340 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1345 event pairs, 100 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 682. Up to 182 conditions per place. [2022-12-13 22:22:22,845 INFO L137 encePairwiseOnDemand]: 186/194 looper letters, 29 selfloop transitions, 3 changer transitions 2/36 dead transitions. [2022-12-13 22:22:22,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 149 flow [2022-12-13 22:22:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:22:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:22:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2022-12-13 22:22:22,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5223367697594502 [2022-12-13 22:22:22,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2022-12-13 22:22:22,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2022-12-13 22:22:22,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:22:22,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2022-12-13 22:22:22,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:22,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:22,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:22,866 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 304 transitions. [2022-12-13 22:22:22,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 149 flow [2022-12-13 22:22:22,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:22:22,869 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 65 flow [2022-12-13 22:22:22,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 22:22:22,873 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 22:22:22,874 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 65 flow [2022-12-13 22:22:22,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:22,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:22:22,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:22:22,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:22:22,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 22:22:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:22:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2037012405, now seen corresponding path program 1 times [2022-12-13 22:22:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:22:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003384268] [2022-12-13 22:22:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:22:22,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:22:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:22:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:22:23,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:22:23,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003384268] [2022-12-13 22:22:23,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003384268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:22:23,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:22:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:22:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797341482] [2022-12-13 22:22:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:22:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:22:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:22:23,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:22:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:22:23,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 194 [2022-12-13 22:22:23,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:22:23,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 194 [2022-12-13 22:22:23,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:22:23,133 INFO L130 PetriNetUnfolder]: 172/308 cut-off events. [2022-12-13 22:22:23,133 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 22:22:23,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 308 events. 172/308 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1196 event pairs, 100 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 712. Up to 182 conditions per place. [2022-12-13 22:22:23,135 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 27 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2022-12-13 22:22:23,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 143 flow [2022-12-13 22:22:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:22:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:22:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2022-12-13 22:22:23,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4948453608247423 [2022-12-13 22:22:23,139 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2022-12-13 22:22:23,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2022-12-13 22:22:23,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:22:23,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2022-12-13 22:22:23,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,142 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,142 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 65 flow. Second operand 4 states and 384 transitions. [2022-12-13 22:22:23,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 143 flow [2022-12-13 22:22:23,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:22:23,144 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 60 flow [2022-12-13 22:22:23,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2022-12-13 22:22:23,144 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 22:22:23,145 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 60 flow [2022-12-13 22:22:23,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:22:23,145 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:22:23,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:22:23,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 22:22:23,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:22:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2037012406, now seen corresponding path program 1 times [2022-12-13 22:22:23,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:22:23,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317565521] [2022-12-13 22:22:23,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:22:23,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:22:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:22:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:22:23,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:22:23,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317565521] [2022-12-13 22:22:23,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317565521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:22:23,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:22:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:22:23,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018329556] [2022-12-13 22:22:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:22:23,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:22:23,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:22:23,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:22:23,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:22:23,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 194 [2022-12-13 22:22:23,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:22:23,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 194 [2022-12-13 22:22:23,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:22:23,338 INFO L130 PetriNetUnfolder]: 164/290 cut-off events. [2022-12-13 22:22:23,338 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-12-13 22:22:23,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 290 events. 164/290 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1140 event pairs, 100 based on Foata normal form. 10/298 useless extension candidates. Maximal degree in co-relation 666. Up to 182 conditions per place. [2022-12-13 22:22:23,339 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2022-12-13 22:22:23,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 134 flow [2022-12-13 22:22:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:22:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:22:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2022-12-13 22:22:23,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49226804123711343 [2022-12-13 22:22:23,341 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 382 transitions. [2022-12-13 22:22:23,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 382 transitions. [2022-12-13 22:22:23,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:22:23,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 382 transitions. [2022-12-13 22:22:23,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,346 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 60 flow. Second operand 4 states and 382 transitions. [2022-12-13 22:22:23,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 134 flow [2022-12-13 22:22:23,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 127 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:22:23,347 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2022-12-13 22:22:23,347 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2022-12-13 22:22:23,348 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2022-12-13 22:22:23,348 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2022-12-13 22:22:23,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:22:23,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 22:22:23,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 22:22:23,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 22:22:23,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 22:22:23,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 22:22:23,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:22:23,353 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 22:22:23,358 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:22:23,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:22:23,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:22:23 BasicIcfg [2022-12-13 22:22:23,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:22:23,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:22:23,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:22:23,363 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:22:23,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:22:19" (3/4) ... [2022-12-13 22:22:23,365 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:22:23,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 22:22:23,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 22:22:23,374 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 22:22:23,374 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 22:22:23,374 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 22:22:23,374 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:22:23,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:22:23,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:22:23,408 INFO L158 Benchmark]: Toolchain (without parser) took 4527.99ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 52.8MB in the end (delta: 62.5MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,409 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 84.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:22:23,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.14ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 89.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.25ms. Allocated memory is still 151.0MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,409 INFO L158 Benchmark]: Boogie Preprocessor took 32.64ms. Allocated memory is still 151.0MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,410 INFO L158 Benchmark]: RCFGBuilder took 502.73ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 115.8MB in the end (delta: -30.7MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,410 INFO L158 Benchmark]: TraceAbstraction took 3547.85ms. Allocated memory is still 151.0MB. Free memory was 115.8MB in the beginning and 54.9MB in the end (delta: 60.9MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,411 INFO L158 Benchmark]: Witness Printer took 45.43ms. Allocated memory is still 151.0MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:22:23,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 84.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.14ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 89.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.25ms. Allocated memory is still 151.0MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.64ms. Allocated memory is still 151.0MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.73ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 115.8MB in the end (delta: -30.7MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3547.85ms. Allocated memory is still 151.0MB. Free memory was 115.8MB in the beginning and 54.9MB in the end (delta: 60.9MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. * Witness Printer took 45.43ms. Allocated memory is still 151.0MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 108 PlacesBefore, 29 PlacesAfterwards, 103 TransitionsBefore, 23 TransitionsAfterwards, 1716 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 5391 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2167, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 967, independent: 931, independent conditional: 0, independent unconditional: 931, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2167, independent: 1013, independent conditional: 0, independent unconditional: 1013, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 967, unknown conditional: 0, unknown unconditional: 967] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 130 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 4 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 22:22:23,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a97b36-e4f8-43fb-bd64-c1d6cb1975e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE