./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/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_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:49:35,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:49:35,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:49:35,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:49:35,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:49:35,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:49:35,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:49:35,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:49:35,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:49:35,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:49:35,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:49:35,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:49:35,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:49:35,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:49:35,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:49:35,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:49:35,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:49:35,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:49:35,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:49:35,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:49:35,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:49:35,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:49:35,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:49:35,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:49:35,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:49:35,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:49:35,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:49:35,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:49:35,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:49:35,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:49:35,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:49:35,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:49:35,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:49:35,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:49:35,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:49:35,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:49:35,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:49:35,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:49:35,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:49:35,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:49:35,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:49:35,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 20:49:35,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:49:35,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:49:35,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:49:35,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:49:35,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:49:35,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:49:35,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:49:35,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:49:35,363 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:49:35,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:49:35,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:49:35,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:49:35,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:49:35,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:49:35,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:49:35,364 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 20:49:35,364 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 20:49:35,364 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 20:49:35,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:49:35,365 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:49:35,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:49:35,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:49:35,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:49:35,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:49:35,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:49:35,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:35,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:49:35,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:49:35,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:49:35,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:49:35,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:49:35,367 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:49:35,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:49:35,367 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:49:35,367 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_74de2744-108b-4925-8f81-b90699d27f6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2022-12-13 20:49:35,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:49:35,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:49:35,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:49:35,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:49:35,585 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:49:35,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-12-13 20:49:38,193 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:49:38,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:49:38,348 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-12-13 20:49:38,353 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/data/da0759f13/1f786ab3ce0b4a0f8c77a6dd35eb71cc/FLAGe1cdc290e [2022-12-13 20:49:38,365 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/data/da0759f13/1f786ab3ce0b4a0f8c77a6dd35eb71cc [2022-12-13 20:49:38,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:49:38,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:49:38,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:38,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:49:38,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:49:38,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77be2548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38, skipping insertion in model container [2022-12-13 20:49:38,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:49:38,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:49:38,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,572 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_74de2744-108b-4925-8f81-b90699d27f6c/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-13 20:49:38,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:38,587 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:49:38,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:49:38,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:49:38,630 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_74de2744-108b-4925-8f81-b90699d27f6c/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-13 20:49:38,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:38,646 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:49:38,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38 WrapperNode [2022-12-13 20:49:38,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:38,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:38,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:49:38,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:49:38,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,694 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-12-13 20:49:38,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:38,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:49:38,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:49:38,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:49:38,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:49:38,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:49:38,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:49:38,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:49:38,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (1/1) ... [2022-12-13 20:49:38,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:38,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:49:38,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:49:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74de2744-108b-4925-8f81-b90699d27f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 20:49:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 20:49:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 20:49:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 20:49:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 20:49:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 20:49:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 20:49:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 20:49:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:49:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 20:49:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 20:49:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-13 20:49:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-13 20:49:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-13 20:49:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-13 20:49:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-12-13 20:49:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-12-13 20:49:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:49:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:49:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:49:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:49:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:49:38,810 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:49:38,915 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:49:38,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:49:39,288 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:49:39,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:49:39,345 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:49:39,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:39 BoogieIcfgContainer [2022-12-13 20:49:39,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:49:39,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:49:39,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:49:39,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:49:39,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:49:38" (1/3) ... [2022-12-13 20:49:39,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49431edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:39, skipping insertion in model container [2022-12-13 20:49:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:38" (2/3) ... [2022-12-13 20:49:39,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49431edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:39, skipping insertion in model container [2022-12-13 20:49:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:39" (3/3) ... [2022-12-13 20:49:39,352 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-12-13 20:49:39,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:49:39,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-12-13 20:49:39,366 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:49:39,437 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 20:49:39,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 270 transitions, 604 flow [2022-12-13 20:49:39,542 INFO L130 PetriNetUnfolder]: 2/262 cut-off events. [2022-12-13 20:49:39,543 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 20:49:39,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 262 events. 2/262 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 214 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-12-13 20:49:39,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 270 transitions, 604 flow [2022-12-13 20:49:39,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 257 transitions, 562 flow [2022-12-13 20:49:39,553 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:49:39,561 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 257 transitions, 562 flow [2022-12-13 20:49:39,563 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 257 transitions, 562 flow [2022-12-13 20:49:39,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 257 transitions, 562 flow [2022-12-13 20:49:39,607 INFO L130 PetriNetUnfolder]: 2/257 cut-off events. [2022-12-13 20:49:39,607 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 20:49:39,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 257 events. 2/257 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 215 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-12-13 20:49:39,615 INFO L119 LiptonReduction]: Number of co-enabled transitions 7070 [2022-12-13 20:49:58,904 INFO L134 LiptonReduction]: Checked pairs total: 40638 [2022-12-13 20:49:58,904 INFO L136 LiptonReduction]: Total number of compositions: 222 [2022-12-13 20:49:58,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:49:58,918 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@723c5791, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:49:58,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-12-13 20:49:58,919 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 20:49:58,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:49:58,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:49:58,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:49:58,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2022-12-13 20:49:58,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1081, now seen corresponding path program 1 times [2022-12-13 20:49:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:49:58,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672098592] [2022-12-13 20:49:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:58,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:49:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:49:59,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:49:59,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672098592] [2022-12-13 20:49:59,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672098592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:49:59,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:49:59,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:49:59,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717582565] [2022-12-13 20:49:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:49:59,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:49:59,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:49:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:49:59,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:49:59,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 492 [2022-12-13 20:49:59,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 99 transitions, 246 flow. Second operand has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:49:59,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:49:59,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 492 [2022-12-13 20:49:59,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand