./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/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_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- 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 13:10:06,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:10:06,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:10:06,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:10:06,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:10:06,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:10:06,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:10:06,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:10:06,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:10:06,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:10:06,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:10:06,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:10:06,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:10:06,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:10:06,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:10:06,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:10:06,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:10:06,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:10:06,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:10:06,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:10:06,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:10:06,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:10:06,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:10:06,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:10:06,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:10:06,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:10:06,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:10:06,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:10:06,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:10:06,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:10:06,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:10:06,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:10:06,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:10:06,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:10:06,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:10:06,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:10:06,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:10:06,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:10:06,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:10:06,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:10:06,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:10:06,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:10:06,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:10:06,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:10:06,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:10:06,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:10:06,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:10:06,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:10:06,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:10:06,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:10:06,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:10:06,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:10:06,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:10:06,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:10:06,407 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:10:06,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:10:06,408 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:10:06,408 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_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2022-12-13 13:10:06,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:10:06,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:10:06,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:10:06,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:10:06,604 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:10:06,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 13:10:09,150 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:10:09,367 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:10:09,367 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 13:10:09,376 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/data/5868bb322/994357805c41456faef0451f69ffe0c3/FLAG2ddd31dda [2022-12-13 13:10:09,387 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/data/5868bb322/994357805c41456faef0451f69ffe0c3 [2022-12-13 13:10:09,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:10:09,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:10:09,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:10:09,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:10:09,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:10:09,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ddc4c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09, skipping insertion in model container [2022-12-13 13:10:09,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:10:09,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:10:09,540 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_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 13:10:09,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:10:09,683 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:10:09,694 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_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 13:10:09,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:10:09,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:10:09,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:10:09,769 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:10:09,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09 WrapperNode [2022-12-13 13:10:09,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:10:09,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:10:09,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:10:09,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:10:09,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,800 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-12-13 13:10:09,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:10:09,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:10:09,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:10:09,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:10:09,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:10:09,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:10:09,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:10:09,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:10:09,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (1/1) ... [2022-12-13 13:10:09,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:10:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:10:09,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:10:09,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:10:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:10:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:10:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:10:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 13:10:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 13:10:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 13:10:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 13:10:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:10:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:10:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:10:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:10:09,875 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 13:10:09,989 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:10:09,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:10:10,155 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:10:10,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:10:10,163 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:10:10,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:10 BoogieIcfgContainer [2022-12-13 13:10:10,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:10:10,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:10:10,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:10:10,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:10:10,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:10:09" (1/3) ... [2022-12-13 13:10:10,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d8c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:10:10, skipping insertion in model container [2022-12-13 13:10:10,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:09" (2/3) ... [2022-12-13 13:10:10,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d8c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:10:10, skipping insertion in model container [2022-12-13 13:10:10,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:10" (3/3) ... [2022-12-13 13:10:10,174 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 13:10:10,182 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:10:10,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:10:10,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:10:10,192 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:10:10,253 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:10:10,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 242 flow [2022-12-13 13:10:10,338 INFO L130 PetriNetUnfolder]: 2/107 cut-off events. [2022-12-13 13:10:10,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:10:10,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2022-12-13 13:10:10,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 111 transitions, 242 flow [2022-12-13 13:10:10,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 91 transitions, 194 flow [2022-12-13 13:10:10,351 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:10:10,362 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 91 transitions, 194 flow [2022-12-13 13:10:10,365 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 91 transitions, 194 flow [2022-12-13 13:10:10,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 91 transitions, 194 flow [2022-12-13 13:10:10,395 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-12-13 13:10:10,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:10:10,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 1/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 49 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-12-13 13:10:10,398 INFO L119 LiptonReduction]: Number of co-enabled transitions 1800 [2022-12-13 13:10:11,997 INFO L134 LiptonReduction]: Checked pairs total: 4019 [2022-12-13 13:10:11,997 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-12-13 13:10:12,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:10:12,015 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;@232895eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:10:12,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 13:10:12,021 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2022-12-13 13:10:12,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:10:12,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:12,022 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:12,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1288150447, now seen corresponding path program 1 times [2022-12-13 13:10:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:12,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760051408] [2022-12-13 13:10:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:12,380 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 13:10:12,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760051408] [2022-12-13 13:10:12,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760051408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:12,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:10:12,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067864914] [2022-12-13 13:10:12,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:12,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:10:12,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:12,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:10:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:10:12,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 185 [2022-12-13 13:10:12,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 13:10:12,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:12,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 185 [2022-12-13 13:10:12,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:12,605 INFO L130 PetriNetUnfolder]: 700/1137 cut-off events. [2022-12-13 13:10:12,605 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-13 13:10:12,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 1137 events. 700/1137 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5668 event pairs, 416 based on Foata normal form. 1/1138 useless extension candidates. Maximal degree in co-relation 2232. Up to 1013 conditions per place. [2022-12-13 13:10:12,616 INFO L137 encePairwiseOnDemand]: 178/185 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2022-12-13 13:10:12,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 145 flow [2022-12-13 13:10:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:10:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:10:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2022-12-13 13:10:12,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765765765765766 [2022-12-13 13:10:12,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2022-12-13 13:10:12,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2022-12-13 13:10:12,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:12,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2022-12-13 13:10:12,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 13:10:12,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:12,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:12,646 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 58 flow. Second operand 3 states and 320 transitions. [2022-12-13 13:10:12,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 145 flow [2022-12-13 13:10:12,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:10:12,651 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 85 flow [2022-12-13 13:10:12,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2022-12-13 13:10:12,657 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-12-13 13:10:12,657 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 85 flow [2022-12-13 13:10:12,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 13:10:12,657 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:12,657 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:12,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:10:12,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1277957339, now seen corresponding path program 1 times [2022-12-13 13:10:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:12,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902930772] [2022-12-13 13:10:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:12,795 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 13:10:12,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:12,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902930772] [2022-12-13 13:10:12,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902930772] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:12,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:12,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:10:12,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018037179] [2022-12-13 13:10:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:12,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:10:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:12,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:10:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:10:12,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 185 [2022-12-13 13:10:12,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 13:10:12,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:12,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 185 [2022-12-13 13:10:12,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:12,931 INFO L130 PetriNetUnfolder]: 623/1021 cut-off events. [2022-12-13 13:10:12,932 INFO L131 PetriNetUnfolder]: For 198/198 co-relation queries the response was YES. [2022-12-13 13:10:12,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 1021 events. 623/1021 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5174 event pairs, 177 based on Foata normal form. 26/1043 useless extension candidates. Maximal degree in co-relation 2425. Up to 720 conditions per place. [2022-12-13 13:10:12,939 INFO L137 encePairwiseOnDemand]: 182/185 looper letters, 30 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2022-12-13 13:10:12,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 183 flow [2022-12-13 13:10:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:10:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:10:12,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2022-12-13 13:10:12,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6054054054054054 [2022-12-13 13:10:12,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2022-12-13 13:10:12,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2022-12-13 13:10:12,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:12,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2022-12-13 13:10:12,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 13:10:12,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:12,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:12,946 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 85 flow. Second operand 3 states and 336 transitions. [2022-12-13 13:10:12,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 183 flow [2022-12-13 13:10:12,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:10:12,947 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 91 flow [2022-12-13 13:10:12,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-12-13 13:10:12,948 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-12-13 13:10:12,948 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow [2022-12-13 13:10:12,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 13:10:12,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:12,949 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:12,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:10:12,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:12,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1277956750, now seen corresponding path program 1 times [2022-12-13 13:10:12,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:12,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166368711] [2022-12-13 13:10:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:12,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:13,060 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 13:10:13,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166368711] [2022-12-13 13:10:13,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166368711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:13,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:13,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:10:13,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061598259] [2022-12-13 13:10:13,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:13,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:10:13,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:13,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:10:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:10:13,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 185 [2022-12-13 13:10:13,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 13:10:13,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:13,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 185 [2022-12-13 13:10:13,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:13,214 INFO L130 PetriNetUnfolder]: 572/955 cut-off events. [2022-12-13 13:10:13,214 INFO L131 PetriNetUnfolder]: For 383/383 co-relation queries the response was YES. [2022-12-13 13:10:13,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2427 conditions, 955 events. 572/955 cut-off events. For 383/383 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4667 event pairs, 370 based on Foata normal form. 18/969 useless extension candidates. Maximal degree in co-relation 2414. Up to 659 conditions per place. [2022-12-13 13:10:13,222 INFO L137 encePairwiseOnDemand]: 182/185 looper letters, 32 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2022-12-13 13:10:13,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 202 flow [2022-12-13 13:10:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:10:13,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:10:13,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2022-12-13 13:10:13,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765765765765766 [2022-12-13 13:10:13,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2022-12-13 13:10:13,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2022-12-13 13:10:13,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:13,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2022-12-13 13:10:13,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 13:10:13,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:13,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 13:10:13,231 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 3 states and 320 transitions. [2022-12-13 13:10:13,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 202 flow [2022-12-13 13:10:13,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:10:13,233 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 96 flow [2022-12-13 13:10:13,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2022-12-13 13:10:13,234 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2022-12-13 13:10:13,234 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 96 flow [2022-12-13 13:10:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 13:10:13,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:13,235 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:13,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:10:13,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash 961970402, now seen corresponding path program 1 times [2022-12-13 13:10:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:13,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815662171] [2022-12-13 13:10:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:13,356 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 13:10:13,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:13,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815662171] [2022-12-13 13:10:13,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815662171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:13,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:13,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:10:13,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169600109] [2022-12-13 13:10:13,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:13,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:10:13,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:13,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:10:13,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:10:13,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 185 [2022-12-13 13:10:13,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 13:10:13,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:13,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 185 [2022-12-13 13:10:13,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:13,519 INFO L130 PetriNetUnfolder]: 941/1506 cut-off events. [2022-12-13 13:10:13,519 INFO L131 PetriNetUnfolder]: For 846/846 co-relation queries the response was YES. [2022-12-13 13:10:13,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3858 conditions, 1506 events. 941/1506 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8146 event pairs, 221 based on Foata normal form. 54/1552 useless extension candidates. Maximal degree in co-relation 3844. Up to 486 conditions per place. [2022-12-13 13:10:13,524 INFO L137 encePairwiseOnDemand]: 181/185 looper letters, 40 selfloop transitions, 3 changer transitions 4/50 dead transitions. [2022-12-13 13:10:13,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 259 flow [2022-12-13 13:10:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:10:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:10:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2022-12-13 13:10:13,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6013513513513513 [2022-12-13 13:10:13,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2022-12-13 13:10:13,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2022-12-13 13:10:13,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:13,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2022-12-13 13:10:13,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 13:10:13,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,527 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 96 flow. Second operand 4 states and 445 transitions. [2022-12-13 13:10:13,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 259 flow [2022-12-13 13:10:13,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 50 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:10:13,529 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 99 flow [2022-12-13 13:10:13,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2022-12-13 13:10:13,530 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 13:10:13,530 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 99 flow [2022-12-13 13:10:13,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 13:10:13,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:13,530 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:13,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:10:13,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:13,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:13,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2094837568, now seen corresponding path program 1 times [2022-12-13 13:10:13,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:13,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604176015] [2022-12-13 13:10:13,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:13,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:13,643 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 13:10:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:13,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604176015] [2022-12-13 13:10:13,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604176015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:13,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:13,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:10:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815502905] [2022-12-13 13:10:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:13,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:10:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:13,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:10:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:10:13,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 185 [2022-12-13 13:10:13,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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 13:10:13,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:13,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 185 [2022-12-13 13:10:13,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:13,775 INFO L130 PetriNetUnfolder]: 627/1009 cut-off events. [2022-12-13 13:10:13,775 INFO L131 PetriNetUnfolder]: For 1164/1164 co-relation queries the response was YES. [2022-12-13 13:10:13,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 1009 events. 627/1009 cut-off events. For 1164/1164 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4782 event pairs, 281 based on Foata normal form. 48/1047 useless extension candidates. Maximal degree in co-relation 2731. Up to 396 conditions per place. [2022-12-13 13:10:13,778 INFO L137 encePairwiseOnDemand]: 181/185 looper letters, 25 selfloop transitions, 3 changer transitions 8/39 dead transitions. [2022-12-13 13:10:13,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 218 flow [2022-12-13 13:10:13,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:10:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:10:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 411 transitions. [2022-12-13 13:10:13,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5554054054054054 [2022-12-13 13:10:13,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 411 transitions. [2022-12-13 13:10:13,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 411 transitions. [2022-12-13 13:10:13,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:13,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 411 transitions. [2022-12-13 13:10:13,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:13,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,784 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,784 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 99 flow. Second operand 4 states and 411 transitions. [2022-12-13 13:10:13,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 218 flow [2022-12-13 13:10:13,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 196 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 13:10:13,787 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 92 flow [2022-12-13 13:10:13,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2022-12-13 13:10:13,788 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 13:10:13,788 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 92 flow [2022-12-13 13:10:13,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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 13:10:13,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:13,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:13,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:10:13,789 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1531453213, now seen corresponding path program 1 times [2022-12-13 13:10:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792952362] [2022-12-13 13:10:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:13,872 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 13:10:13,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:13,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792952362] [2022-12-13 13:10:13,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792952362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:13,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:13,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:10:13,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420943400] [2022-12-13 13:10:13,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:10:13,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:13,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:10:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:10:13,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 185 [2022-12-13 13:10:13,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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 13:10:13,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:13,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 185 [2022-12-13 13:10:13,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:13,955 INFO L130 PetriNetUnfolder]: 353/598 cut-off events. [2022-12-13 13:10:13,956 INFO L131 PetriNetUnfolder]: For 647/647 co-relation queries the response was YES. [2022-12-13 13:10:13,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 598 events. 353/598 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2621 event pairs, 135 based on Foata normal form. 32/614 useless extension candidates. Maximal degree in co-relation 1460. Up to 201 conditions per place. [2022-12-13 13:10:13,958 INFO L137 encePairwiseOnDemand]: 181/185 looper letters, 21 selfloop transitions, 3 changer transitions 13/40 dead transitions. [2022-12-13 13:10:13,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 40 transitions, 220 flow [2022-12-13 13:10:13,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:10:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:10:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2022-12-13 13:10:13,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5905405405405405 [2022-12-13 13:10:13,959 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 437 transitions. [2022-12-13 13:10:13,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions. [2022-12-13 13:10:13,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:13,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions. [2022-12-13 13:10:13,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 13:10:13,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,963 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:13,963 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 92 flow. Second operand 4 states and 437 transitions. [2022-12-13 13:10:13,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 40 transitions, 220 flow [2022-12-13 13:10:13,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 196 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-12-13 13:10:13,965 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 82 flow [2022-12-13 13:10:13,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2022-12-13 13:10:13,966 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2022-12-13 13:10:13,966 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 82 flow [2022-12-13 13:10:13,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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 13:10:13,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:13,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:13,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:10:13,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 13:10:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:13,967 INFO L85 PathProgramCache]: Analyzing trace with hash -609197728, now seen corresponding path program 1 times [2022-12-13 13:10:13,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:13,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422272479] [2022-12-13 13:10:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:14,062 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 13:10:14,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:14,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422272479] [2022-12-13 13:10:14,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422272479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:14,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:14,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:10:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22103365] [2022-12-13 13:10:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:14,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:10:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:10:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:10:14,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 185 [2022-12-13 13:10:14,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 13:10:14,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:14,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 185 [2022-12-13 13:10:14,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:10:14,108 INFO L130 PetriNetUnfolder]: 134/237 cut-off events. [2022-12-13 13:10:14,108 INFO L131 PetriNetUnfolder]: For 223/224 co-relation queries the response was YES. [2022-12-13 13:10:14,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 237 events. 134/237 cut-off events. For 223/224 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 655 event pairs, 70 based on Foata normal form. 24/260 useless extension candidates. Maximal degree in co-relation 537. Up to 127 conditions per place. [2022-12-13 13:10:14,109 INFO L137 encePairwiseOnDemand]: 182/185 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2022-12-13 13:10:14,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 25 transitions, 124 flow [2022-12-13 13:10:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:10:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:10:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2022-12-13 13:10:14,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.572972972972973 [2022-12-13 13:10:14,110 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 424 transitions. [2022-12-13 13:10:14,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 424 transitions. [2022-12-13 13:10:14,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:14,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 424 transitions. [2022-12-13 13:10:14,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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 13:10:14,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:14,112 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 13:10:14,112 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 82 flow. Second operand 4 states and 424 transitions. [2022-12-13 13:10:14,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 25 transitions, 124 flow [2022-12-13 13:10:14,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 104 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-12-13 13:10:14,113 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2022-12-13 13:10:14,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2022-12-13 13:10:14,113 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-12-13 13:10:14,113 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2022-12-13 13:10:14,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 13:10:14,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-13 13:10:14,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-13 13:10:14,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-13 13:10:14,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-13 13:10:14,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-13 13:10:14,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:10:14,116 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:14,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:10:14,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:10:14,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:10:14 BasicIcfg [2022-12-13 13:10:14,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:10:14,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:10:14,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:10:14,121 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:10:14,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:10" (3/4) ... [2022-12-13 13:10:14,124 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:10:14,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 13:10:14,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 13:10:14,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 13:10:14,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-13 13:10:14,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 13:10:14,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:10:14,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:10:14,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:10:14,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:10:14,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:10:14,165 INFO L158 Benchmark]: Toolchain (without parser) took 4775.20ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 147.2MB in the beginning and 148.2MB in the end (delta: -955.9kB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,165 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory was 153.9MB in the beginning and 153.6MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:10:14,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.49ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 122.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.54ms. Allocated memory is still 182.5MB. Free memory was 122.9MB in the beginning and 120.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,166 INFO L158 Benchmark]: Boogie Preprocessor took 18.96ms. Allocated memory is still 182.5MB. Free memory was 120.7MB in the beginning and 118.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,167 INFO L158 Benchmark]: RCFGBuilder took 346.34ms. Allocated memory is still 182.5MB. Free memory was 118.7MB in the beginning and 104.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,167 INFO L158 Benchmark]: TraceAbstraction took 3951.80ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 103.4MB in the beginning and 151.3MB in the end (delta: -48.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:10:14,167 INFO L158 Benchmark]: Witness Printer took 43.19ms. Allocated memory is still 224.4MB. Free memory was 151.3MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:10:14,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory was 153.9MB in the beginning and 153.6MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.49ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 122.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.54ms. Allocated memory is still 182.5MB. Free memory was 122.9MB in the beginning and 120.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.96ms. Allocated memory is still 182.5MB. Free memory was 120.7MB in the beginning and 118.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.34ms. Allocated memory is still 182.5MB. Free memory was 118.7MB in the beginning and 104.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3951.80ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 103.4MB in the beginning and 151.3MB in the end (delta: -48.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.19ms. Allocated memory is still 224.4MB. Free memory was 151.3MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 103 PlacesBefore, 35 PlacesAfterwards, 91 TransitionsBefore, 23 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 4019 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2120, independent: 1978, independent conditional: 0, independent unconditional: 1978, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 965, independent: 923, independent conditional: 0, independent unconditional: 923, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2120, independent: 1055, independent conditional: 0, independent unconditional: 1055, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 965, unknown conditional: 0, unknown unconditional: 965] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 142 locations, 5 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 27 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 0.8s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:10:14,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cd7689-a0f0-4dcf-92f3-835ae2adb810/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