./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- 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 [2022-12-14 07:31:34,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:31:34,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:31:34,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:31:34,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:31:34,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:31:34,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:31:34,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:31:34,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:31:34,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:31:34,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:31:34,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:31:34,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:31:34,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:31:34,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:31:34,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:31:34,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:31:34,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:31:34,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:31:34,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:31:34,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:31:34,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:31:34,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:31:34,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:31:34,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:31:34,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:31:34,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:31:34,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:31:34,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:31:34,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:31:34,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:31:34,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:31:34,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:31:34,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:31:34,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:31:34,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:31:34,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:31:34,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:31:34,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:31:34,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:31:34,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:31:34,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 07:31:34,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:31:34,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:31:34,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:31:34,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:31:34,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:31:34,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:31:34,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:31:34,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:31:34,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:31:34,597 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:31:34,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:31:34,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:31:34,597 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:31:34,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:31:34,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:31:34,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:31:34,599 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:31:34,600 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:31:34,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:31:34,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:31:34,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:31:34,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:31:34,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:31:34,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:31:34,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:31:34,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:31:34,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:31:34,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2022-12-14 07:31:34,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:31:34,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:31:34,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:31:34,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:31:34,784 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:31:34,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-12-14 07:31:37,390 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:31:37,639 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:31:37,640 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-12-14 07:31:37,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/data/d8992ab02/ca37dc03ed41445ebffc22d71a597c16/FLAGcfd69c18b [2022-12-14 07:31:37,959 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/data/d8992ab02/ca37dc03ed41445ebffc22d71a597c16 [2022-12-14 07:31:37,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:31:37,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:31:37,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:37,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:31:37,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:31:37,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:37" (1/1) ... [2022-12-14 07:31:37,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c790933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:37, skipping insertion in model container [2022-12-14 07:31:37,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:37" (1/1) ... [2022-12-14 07:31:37,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:31:38,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:31:38,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,509 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_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-12-14 07:31:38,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:38,545 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:31:38,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,612 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_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-12-14 07:31:38,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:31:38,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:31:38,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:38,742 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:31:38,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38 WrapperNode [2022-12-14 07:31:38,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:38,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:38,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:31:38,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:31:38,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,885 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3797 [2022-12-14 07:31:38,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:38,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:31:38,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:31:38,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:31:38,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:38,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:39,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:31:39,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:31:39,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:31:39,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:31:39,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (1/1) ... [2022-12-14 07:31:39,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:31:39,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:39,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:31:39,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbc8c3-dc64-41aa-9df0-1d7fc4276029/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:31:39,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 07:31:39,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-12-14 07:31:39,069 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-12-14 07:31:39,069 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-12-14 07:31:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-12-14 07:31:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:31:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-12-14 07:31:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-12-14 07:31:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-12-14 07:31:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-12-14 07:31:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-12-14 07:31:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-12-14 07:31:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-12-14 07:31:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-12-14 07:31:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:31:39,074 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 07:31:39,384 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:31:39,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:31:41,895 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:31:43,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:31:43,699 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:31:43,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:43 BoogieIcfgContainer [2022-12-14 07:31:43,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:31:43,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:31:43,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:31:43,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:31:43,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:31:37" (1/3) ... [2022-12-14 07:31:43,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c3993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:43, skipping insertion in model container [2022-12-14 07:31:43,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:38" (2/3) ... [2022-12-14 07:31:43,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c3993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:43, skipping insertion in model container [2022-12-14 07:31:43,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:43" (3/3) ... [2022-12-14 07:31:43,711 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-12-14 07:31:43,721 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 07:31:43,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:31:43,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2022-12-14 07:31:43,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:31:44,353 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 07:31:44,422 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:31:44,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2537 places, 2662 transitions, 5359 flow [2022-12-14 07:31:44,437 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2537 places, 2662 transitions, 5359 flow [2022-12-14 07:31:44,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2537 places, 2662 transitions, 5359 flow [2022-12-14 07:31:47,281 INFO L130 PetriNetUnfolder]: 147/2655 cut-off events. [2022-12-14 07:31:47,281 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 07:31:47,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 2655 events. 147/2655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 18130 event pairs, 0 based on Foata normal form. 0/2424 useless extension candidates. Maximal degree in co-relation 2600. Up to 6 conditions per place. [2022-12-14 07:31:48,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 5686704 [2022-12-14 07:32:06,877 WARN L233 SmtUtils]: Spent 14.12s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:32:14,304 WARN L233 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 296 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:32:33,053 WARN L233 SmtUtils]: Spent 18.74s on a formula simplification. DAG size of input: 330 DAG size of output: 323 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:32:41,671 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:33:35,044 WARN L233 SmtUtils]: Spent 17.05s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:33:42,428 WARN L233 SmtUtils]: Spent 7.38s on a formula simplification that was a NOOP. DAG size: 296 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:34:03,871 WARN L233 SmtUtils]: Spent 21.44s on a formula simplification. DAG size of input: 330 DAG size of output: 323 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:34:14,244 WARN L233 SmtUtils]: Spent 10.37s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:35:01,210 WARN L233 SmtUtils]: Spent 16.60s on a formula simplification. DAG size of input: 307 DAG size of output: 300 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:35:09,365 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 300 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:35:32,700 WARN L233 SmtUtils]: Spent 23.33s on a formula simplification. DAG size of input: 331 DAG size of output: 324 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:35:43,956 WARN L233 SmtUtils]: Spent 11.25s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:36:45,883 WARN L233 SmtUtils]: Spent 18.81s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:36:54,760 WARN L233 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 296 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:37:17,701 WARN L233 SmtUtils]: Spent 22.94s on a formula simplification. DAG size of input: 330 DAG size of output: 323 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:37:28,368 WARN L233 SmtUtils]: Spent 10.67s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:38:32,837 WARN L233 SmtUtils]: Spent 18.59s on a formula simplification. DAG size of input: 307 DAG size of output: 300 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:38:42,022 WARN L233 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 300 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:39:05,803 WARN L233 SmtUtils]: Spent 23.78s on a formula simplification. DAG size of input: 331 DAG size of output: 324 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:39:16,806 WARN L233 SmtUtils]: Spent 11.00s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:39:46,246 WARN L233 SmtUtils]: Spent 18.54s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:39:54,913 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 296 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:40:16,581 WARN L233 SmtUtils]: Spent 21.66s on a formula simplification. DAG size of input: 330 DAG size of output: 323 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:40:29,228 WARN L233 SmtUtils]: Spent 12.64s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:43:06,122 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification that was a NOOP. DAG size: 301 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:43:16,260 WARN L233 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 298 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:43:27,198 WARN L233 SmtUtils]: Spent 10.93s on a formula simplification that was a NOOP. DAG size: 325 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:43:38,012 WARN L233 SmtUtils]: Spent 10.81s on a formula simplification that was a NOOP. DAG size: 322 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:46:07,002 WARN L233 SmtUtils]: Spent 19.22s on a formula simplification. DAG size of input: 309 DAG size of output: 302 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:46:16,471 WARN L233 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 302 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:46:41,055 WARN L233 SmtUtils]: Spent 24.58s on a formula simplification. DAG size of input: 333 DAG size of output: 326 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)