./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/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_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/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_bac75b97-d565-4c7a-ad51-85174a1da910/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 d974e781ffea1b31efc329a775e4694ebddd3772fc019bafad0898da50a9d8c1 --- 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 19:05:24,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:05:24,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:05:24,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:05:24,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:05:24,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:05:24,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:05:24,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:05:24,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:05:24,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:05:24,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:05:24,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:05:24,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:05:24,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:05:24,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:05:24,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:05:24,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:05:24,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:05:24,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:05:24,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:05:24,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:05:24,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:05:24,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:05:24,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:05:24,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:05:24,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:05:24,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:05:24,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:05:24,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:05:24,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:05:24,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:05:24,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:05:24,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:05:24,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:05:24,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:05:24,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:05:24,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:05:24,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:05:24,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:05:24,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:05:24,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:05:24,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:05:24,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:05:24,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:05:24,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:05:24,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:05:24,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:05:24,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:05:24,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:05:24,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:05:24,872 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:05:24,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:05:24,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:05:24,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:05:24,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:05:24,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:05:24,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:05:24,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:05:24,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:05:24,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:05:24,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:05:24,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:05:24,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:05:24,876 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:05:24,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:05:24,876 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:05:24,876 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_bac75b97-d565-4c7a-ad51-85174a1da910/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974e781ffea1b31efc329a775e4694ebddd3772fc019bafad0898da50a9d8c1 [2022-12-13 19:05:25,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:05:25,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:05:25,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:05:25,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:05:25,104 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:05:25,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 19:05:27,618 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:05:27,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:05:27,803 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 19:05:27,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/data/42f05061a/88a10086c01a4543ae033c03d06b2583/FLAGb0197c1a2 [2022-12-13 19:05:28,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/data/42f05061a/88a10086c01a4543ae033c03d06b2583 [2022-12-13 19:05:28,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:05:28,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:05:28,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:05:28,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:05:28,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:05:28,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6d02af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28, skipping insertion in model container [2022-12-13 19:05:28,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:05:28,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:05:28,337 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_bac75b97-d565-4c7a-ad51-85174a1da910/sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 19:05:28,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:05:28,478 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:05:28,486 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_bac75b97-d565-4c7a-ad51-85174a1da910/sv-benchmarks/c/pthread-wmm/mix028_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 19:05:28,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:05:28,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:05:28,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:05:28,541 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:05:28,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28 WrapperNode [2022-12-13 19:05:28,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:05:28,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:05:28,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:05:28,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:05:28,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,574 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2022-12-13 19:05:28,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:05:28,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:05:28,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:05:28,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:05:28,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:05:28,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:05:28,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:05:28,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:05:28,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (1/1) ... [2022-12-13 19:05:28,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:05:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:28,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:05:28,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:05:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:05:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:05:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:05:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:05:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:05:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:05:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:05:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:05:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:05:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:05:28,655 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 19:05:28,764 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:05:28,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:05:29,023 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:05:29,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:05:29,103 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:05:29,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:05:29 BoogieIcfgContainer [2022-12-13 19:05:29,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:05:29,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:05:29,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:05:29,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:05:29,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:05:28" (1/3) ... [2022-12-13 19:05:29,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e4ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:05:29, skipping insertion in model container [2022-12-13 19:05:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:05:28" (2/3) ... [2022-12-13 19:05:29,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e4ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:05:29, skipping insertion in model container [2022-12-13 19:05:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:05:29" (3/3) ... [2022-12-13 19:05:29,111 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 19:05:29,117 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:05:29,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:05:29,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:05:29,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:05:29,162 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:05:29,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2022-12-13 19:05:29,234 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-13 19:05:29,234 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:05:29,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-12-13 19:05:29,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2022-12-13 19:05:29,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2022-12-13 19:05:29,243 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:05:29,251 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2022-12-13 19:05:29,253 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2022-12-13 19:05:29,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2022-12-13 19:05:29,275 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-13 19:05:29,275 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:05:29,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-12-13 19:05:29,277 INFO L119 LiptonReduction]: Number of co-enabled transitions 2192 [2022-12-13 19:05:31,888 INFO L134 LiptonReduction]: Checked pairs total: 5981 [2022-12-13 19:05:31,888 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-13 19:05:31,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:05:31,903 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;@26322fa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:05:31,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 19:05:31,906 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 19:05:31,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:05:31,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:31,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 19:05:31,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:31,910 INFO L85 PathProgramCache]: Analyzing trace with hash 494264, now seen corresponding path program 1 times [2022-12-13 19:05:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:31,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271848573] [2022-12-13 19:05:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:31,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:32,158 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 19:05:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:32,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271848573] [2022-12-13 19:05:32,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271848573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:32,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:32,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:05:32,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871534333] [2022-12-13 19:05:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:32,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:05:32,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:05:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:05:32,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 216 [2022-12-13 19:05:32,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 19:05:32,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:32,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 216 [2022-12-13 19:05:32,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:32,425 INFO L130 PetriNetUnfolder]: 895/1454 cut-off events. [2022-12-13 19:05:32,426 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 19:05:32,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 1454 events. 895/1454 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7616 event pairs, 142 based on Foata normal form. 0/1370 useless extension candidates. Maximal degree in co-relation 2826. Up to 1084 conditions per place. [2022-12-13 19:05:32,433 INFO L137 encePairwiseOnDemand]: 213/216 looper letters, 31 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2022-12-13 19:05:32,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 161 flow [2022-12-13 19:05:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:05:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:05:32,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-12-13 19:05:32,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-12-13 19:05:32,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-12-13 19:05:32,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-12-13 19:05:32,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:32,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-12-13 19:05:32,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 19:05:32,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 19:05:32,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 19:05:32,454 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 57 flow. Second operand 3 states and 342 transitions. [2022-12-13 19:05:32,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 161 flow [2022-12-13 19:05:32,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:05:32,457 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 54 flow [2022-12-13 19:05:32,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2022-12-13 19:05:32,461 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2022-12-13 19:05:32,462 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 54 flow [2022-12-13 19:05:32,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 19:05:32,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:32,462 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:32,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:05:32,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:32,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2078726352, now seen corresponding path program 1 times [2022-12-13 19:05:32,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:32,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543782407] [2022-12-13 19:05:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:32,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:32,664 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 19:05:32,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:32,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543782407] [2022-12-13 19:05:32,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543782407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:32,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:32,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:05:32,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906256758] [2022-12-13 19:05:32,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:32,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:05:32,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:32,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:05:32,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:05:32,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 216 [2022-12-13 19:05:32,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 19:05:32,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:32,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 216 [2022-12-13 19:05:32,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:32,870 INFO L130 PetriNetUnfolder]: 883/1368 cut-off events. [2022-12-13 19:05:32,870 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-12-13 19:05:32,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 1368 events. 883/1368 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5955 event pairs, 430 based on Foata normal form. 10/1374 useless extension candidates. Maximal degree in co-relation 2823. Up to 1252 conditions per place. [2022-12-13 19:05:32,875 INFO L137 encePairwiseOnDemand]: 212/216 looper letters, 30 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2022-12-13 19:05:32,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 152 flow [2022-12-13 19:05:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:05:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:05:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2022-12-13 19:05:32,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5154320987654321 [2022-12-13 19:05:32,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2022-12-13 19:05:32,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2022-12-13 19:05:32,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:32,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2022-12-13 19:05:32,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 19:05:32,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 19:05:32,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 19:05:32,883 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 54 flow. Second operand 3 states and 334 transitions. [2022-12-13 19:05:32,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 152 flow [2022-12-13 19:05:32,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:05:32,884 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2022-12-13 19:05:32,884 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2022-12-13 19:05:32,885 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2022-12-13 19:05:32,885 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 69 flow [2022-12-13 19:05:32,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 19:05:32,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:32,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:32,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:05:32,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:32,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash 16006295, now seen corresponding path program 1 times [2022-12-13 19:05:32,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:32,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865722980] [2022-12-13 19:05:32,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:32,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:33,047 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 19:05:33,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:33,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865722980] [2022-12-13 19:05:33,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865722980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:33,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:33,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:05:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741659787] [2022-12-13 19:05:33,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:33,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:05:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:05:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:05:33,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-12-13 19:05:33,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 19:05:33,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:33,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-12-13 19:05:33,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:33,468 INFO L130 PetriNetUnfolder]: 2050/3081 cut-off events. [2022-12-13 19:05:33,468 INFO L131 PetriNetUnfolder]: For 517/517 co-relation queries the response was YES. [2022-12-13 19:05:33,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6748 conditions, 3081 events. 2050/3081 cut-off events. For 517/517 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14641 event pairs, 151 based on Foata normal form. 128/3209 useless extension candidates. Maximal degree in co-relation 6737. Up to 1625 conditions per place. [2022-12-13 19:05:33,491 INFO L137 encePairwiseOnDemand]: 208/216 looper letters, 41 selfloop transitions, 10 changer transitions 0/51 dead transitions. [2022-12-13 19:05:33,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 51 transitions, 241 flow [2022-12-13 19:05:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:05:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:05:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2022-12-13 19:05:33,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49189814814814814 [2022-12-13 19:05:33,493 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 425 transitions. [2022-12-13 19:05:33,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 425 transitions. [2022-12-13 19:05:33,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:33,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 425 transitions. [2022-12-13 19:05:33,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 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 19:05:33,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:33,498 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:33,498 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 69 flow. Second operand 4 states and 425 transitions. [2022-12-13 19:05:33,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 51 transitions, 241 flow [2022-12-13 19:05:33,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 51 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:05:33,500 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 144 flow [2022-12-13 19:05:33,500 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2022-12-13 19:05:33,501 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-12-13 19:05:33,501 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 144 flow [2022-12-13 19:05:33,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 19:05:33,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:33,502 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:33,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:05:33,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:33,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1747732850, now seen corresponding path program 1 times [2022-12-13 19:05:33,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:33,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403305722] [2022-12-13 19:05:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:33,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:33,636 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 19:05:33,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:33,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403305722] [2022-12-13 19:05:33,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403305722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:33,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:33,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:05:33,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995895469] [2022-12-13 19:05:33,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:33,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:05:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:05:33,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:05:33,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-12-13 19:05:33,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 19:05:33,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:33,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-12-13 19:05:33,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:34,028 INFO L130 PetriNetUnfolder]: 1964/2954 cut-off events. [2022-12-13 19:05:34,028 INFO L131 PetriNetUnfolder]: For 2138/2138 co-relation queries the response was YES. [2022-12-13 19:05:34,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7923 conditions, 2954 events. 1964/2954 cut-off events. For 2138/2138 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 13699 event pairs, 442 based on Foata normal form. 23/2977 useless extension candidates. Maximal degree in co-relation 7908. Up to 1310 conditions per place. [2022-12-13 19:05:34,038 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 48 selfloop transitions, 8 changer transitions 0/56 dead transitions. [2022-12-13 19:05:34,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 56 transitions, 338 flow [2022-12-13 19:05:34,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:05:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:05:34,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 422 transitions. [2022-12-13 19:05:34,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48842592592592593 [2022-12-13 19:05:34,041 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 422 transitions. [2022-12-13 19:05:34,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 422 transitions. [2022-12-13 19:05:34,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:34,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 422 transitions. [2022-12-13 19:05:34,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 19:05:34,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:34,045 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:34,045 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 144 flow. Second operand 4 states and 422 transitions. [2022-12-13 19:05:34,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 56 transitions, 338 flow [2022-12-13 19:05:34,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:05:34,048 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 216 flow [2022-12-13 19:05:34,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-13 19:05:34,049 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2022-12-13 19:05:34,049 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 216 flow [2022-12-13 19:05:34,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 19:05:34,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:34,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:34,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:05:34,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1685159648, now seen corresponding path program 1 times [2022-12-13 19:05:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:34,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932556262] [2022-12-13 19:05:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:34,175 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 19:05:34,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:34,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932556262] [2022-12-13 19:05:34,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932556262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:34,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:34,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:05:34,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755445105] [2022-12-13 19:05:34,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:34,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:05:34,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:34,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:05:34,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:05:34,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 216 [2022-12-13 19:05:34,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 19:05:34,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:34,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 216 [2022-12-13 19:05:34,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:34,464 INFO L130 PetriNetUnfolder]: 1071/1862 cut-off events. [2022-12-13 19:05:34,465 INFO L131 PetriNetUnfolder]: For 2186/2250 co-relation queries the response was YES. [2022-12-13 19:05:34,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5105 conditions, 1862 events. 1071/1862 cut-off events. For 2186/2250 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10671 event pairs, 260 based on Foata normal form. 213/2023 useless extension candidates. Maximal degree in co-relation 5085. Up to 711 conditions per place. [2022-12-13 19:05:34,471 INFO L137 encePairwiseOnDemand]: 210/216 looper letters, 54 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2022-12-13 19:05:34,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 71 transitions, 492 flow [2022-12-13 19:05:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:05:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:05:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2022-12-13 19:05:34,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5023148148148148 [2022-12-13 19:05:34,473 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2022-12-13 19:05:34,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2022-12-13 19:05:34,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:34,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2022-12-13 19:05:34,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 19:05:34,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:34,476 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:34,476 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 216 flow. Second operand 4 states and 434 transitions. [2022-12-13 19:05:34,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 71 transitions, 492 flow [2022-12-13 19:05:34,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 71 transitions, 482 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 19:05:34,480 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 246 flow [2022-12-13 19:05:34,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2022-12-13 19:05:34,480 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2022-12-13 19:05:34,480 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 246 flow [2022-12-13 19:05:34,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 19:05:34,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:34,481 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:34,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:05:34,481 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:34,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:34,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1092970459, now seen corresponding path program 1 times [2022-12-13 19:05:34,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:34,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620988057] [2022-12-13 19:05:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:34,638 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 19:05:34,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:34,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620988057] [2022-12-13 19:05:34,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620988057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:34,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:34,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:05:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846213405] [2022-12-13 19:05:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:34,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:05:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:05:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:05:34,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 216 [2022-12-13 19:05:34,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 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 19:05:34,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:34,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 216 [2022-12-13 19:05:34,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:34,975 INFO L130 PetriNetUnfolder]: 830/1498 cut-off events. [2022-12-13 19:05:34,975 INFO L131 PetriNetUnfolder]: For 2035/2074 co-relation queries the response was YES. [2022-12-13 19:05:34,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 1498 events. 830/1498 cut-off events. For 2035/2074 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8507 event pairs, 257 based on Foata normal form. 117/1563 useless extension candidates. Maximal degree in co-relation 4875. Up to 598 conditions per place. [2022-12-13 19:05:34,982 INFO L137 encePairwiseOnDemand]: 210/216 looper letters, 63 selfloop transitions, 8 changer transitions 0/83 dead transitions. [2022-12-13 19:05:34,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 83 transitions, 592 flow [2022-12-13 19:05:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:05:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:05:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2022-12-13 19:05:34,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037 [2022-12-13 19:05:34,984 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2022-12-13 19:05:34,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2022-12-13 19:05:34,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:34,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2022-12-13 19:05:34,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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 19:05:34,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 19:05:34,987 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 19:05:34,987 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 246 flow. Second operand 5 states and 544 transitions. [2022-12-13 19:05:34,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 83 transitions, 592 flow [2022-12-13 19:05:34,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 83 transitions, 589 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:05:34,991 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 298 flow [2022-12-13 19:05:34,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2022-12-13 19:05:34,992 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2022-12-13 19:05:34,992 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 298 flow [2022-12-13 19:05:34,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 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 19:05:34,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:34,992 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:34,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:05:34,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:34,993 INFO L85 PathProgramCache]: Analyzing trace with hash 54907924, now seen corresponding path program 1 times [2022-12-13 19:05:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:34,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503169895] [2022-12-13 19:05:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,139 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 19:05:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:35,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503169895] [2022-12-13 19:05:35,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503169895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:35,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:35,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:05:35,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747745642] [2022-12-13 19:05:35,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:35,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:05:35,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:05:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:05:35,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-12-13 19:05:35,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 19:05:35,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:35,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-12-13 19:05:35,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:35,471 INFO L130 PetriNetUnfolder]: 1679/2817 cut-off events. [2022-12-13 19:05:35,472 INFO L131 PetriNetUnfolder]: For 7746/7746 co-relation queries the response was YES. [2022-12-13 19:05:35,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10853 conditions, 2817 events. 1679/2817 cut-off events. For 7746/7746 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 15828 event pairs, 293 based on Foata normal form. 10/2827 useless extension candidates. Maximal degree in co-relation 10828. Up to 1264 conditions per place. [2022-12-13 19:05:35,478 INFO L137 encePairwiseOnDemand]: 208/216 looper letters, 55 selfloop transitions, 16 changer transitions 24/95 dead transitions. [2022-12-13 19:05:35,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 791 flow [2022-12-13 19:05:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:05:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:05:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2022-12-13 19:05:35,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 19:05:35,479 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2022-12-13 19:05:35,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2022-12-13 19:05:35,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:35,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2022-12-13 19:05:35,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 19:05:35,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:35,483 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 19:05:35,483 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 298 flow. Second operand 4 states and 432 transitions. [2022-12-13 19:05:35,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 791 flow [2022-12-13 19:05:35,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 759 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 19:05:35,494 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 343 flow [2022-12-13 19:05:35,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=343, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2022-12-13 19:05:35,495 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 20 predicate places. [2022-12-13 19:05:35,495 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 343 flow [2022-12-13 19:05:35,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 19:05:35,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:35,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:35,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:05:35,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash -381534349, now seen corresponding path program 1 times [2022-12-13 19:05:35,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:35,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254956098] [2022-12-13 19:05:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:35,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,714 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 19:05:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:35,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254956098] [2022-12-13 19:05:35,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254956098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:35,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:35,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:05:35,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142303540] [2022-12-13 19:05:35,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:35,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:05:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:05:35,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:05:35,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 216 [2022-12-13 19:05:35,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:05:35,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:35,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 216 [2022-12-13 19:05:35,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:35,920 INFO L130 PetriNetUnfolder]: 388/778 cut-off events. [2022-12-13 19:05:35,921 INFO L131 PetriNetUnfolder]: For 2037/2053 co-relation queries the response was YES. [2022-12-13 19:05:35,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 778 events. 388/778 cut-off events. For 2037/2053 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4065 event pairs, 109 based on Foata normal form. 51/822 useless extension candidates. Maximal degree in co-relation 2965. Up to 278 conditions per place. [2022-12-13 19:05:35,924 INFO L137 encePairwiseOnDemand]: 210/216 looper letters, 42 selfloop transitions, 11 changer transitions 11/73 dead transitions. [2022-12-13 19:05:35,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 659 flow [2022-12-13 19:05:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:05:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:05:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2022-12-13 19:05:35,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-13 19:05:35,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2022-12-13 19:05:35,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2022-12-13 19:05:35,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:35,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2022-12-13 19:05:35,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 19:05:35,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 19:05:35,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 19:05:35,931 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 343 flow. Second operand 6 states and 630 transitions. [2022-12-13 19:05:35,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 659 flow [2022-12-13 19:05:35,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 614 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-12-13 19:05:35,940 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 312 flow [2022-12-13 19:05:35,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2022-12-13 19:05:35,940 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 23 predicate places. [2022-12-13 19:05:35,941 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 312 flow [2022-12-13 19:05:35,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:05:35,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:35,941 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:35,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:05:35,941 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:35,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1402609366, now seen corresponding path program 1 times [2022-12-13 19:05:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:35,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404547120] [2022-12-13 19:05:35,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:35,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:36,624 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 19:05:36,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:36,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404547120] [2022-12-13 19:05:36,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404547120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:36,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:36,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:05:36,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105981376] [2022-12-13 19:05:36,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:36,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:36,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:36,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:05:36,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216 [2022-12-13 19:05:36,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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 19:05:36,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:36,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216 [2022-12-13 19:05:36,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:36,879 INFO L130 PetriNetUnfolder]: 313/646 cut-off events. [2022-12-13 19:05:36,880 INFO L131 PetriNetUnfolder]: For 1795/1812 co-relation queries the response was YES. [2022-12-13 19:05:36,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 646 events. 313/646 cut-off events. For 1795/1812 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3255 event pairs, 90 based on Foata normal form. 6/647 useless extension candidates. Maximal degree in co-relation 2620. Up to 281 conditions per place. [2022-12-13 19:05:36,882 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 50 selfloop transitions, 6 changer transitions 33/98 dead transitions. [2022-12-13 19:05:36,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 98 transitions, 865 flow [2022-12-13 19:05:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:05:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:05:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2022-12-13 19:05:36,884 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4984567901234568 [2022-12-13 19:05:36,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 646 transitions. [2022-12-13 19:05:36,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 646 transitions. [2022-12-13 19:05:36,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:36,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 646 transitions. [2022-12-13 19:05:36,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 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 19:05:36,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 19:05:36,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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 19:05:36,888 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 312 flow. Second operand 6 states and 646 transitions. [2022-12-13 19:05:36,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 98 transitions, 865 flow [2022-12-13 19:05:36,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 98 transitions, 753 flow, removed 19 selfloop flow, removed 7 redundant places. [2022-12-13 19:05:36,895 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 317 flow [2022-12-13 19:05:36,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2022-12-13 19:05:36,896 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2022-12-13 19:05:36,896 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 317 flow [2022-12-13 19:05:36,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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 19:05:36,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:36,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:36,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:05:36,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash 745169926, now seen corresponding path program 2 times [2022-12-13 19:05:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:36,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032784077] [2022-12-13 19:05:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:36,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,603 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 19:05:37,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:37,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032784077] [2022-12-13 19:05:37,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032784077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:37,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:37,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:05:37,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751372906] [2022-12-13 19:05:37,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:37,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:37,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:37,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:37,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:05:37,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216 [2022-12-13 19:05:37,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 317 flow. Second operand has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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 19:05:37,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:05:37,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216 [2022-12-13 19:05:37,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:05:37,988 INFO L130 PetriNetUnfolder]: 260/557 cut-off events. [2022-12-13 19:05:37,988 INFO L131 PetriNetUnfolder]: For 1160/1201 co-relation queries the response was YES. [2022-12-13 19:05:37,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 557 events. 260/557 cut-off events. For 1160/1201 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2725 event pairs, 21 based on Foata normal form. 29/584 useless extension candidates. Maximal degree in co-relation 2304. Up to 292 conditions per place. [2022-12-13 19:05:37,991 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 48 selfloop transitions, 13 changer transitions 30/100 dead transitions. [2022-12-13 19:05:37,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 100 transitions, 839 flow [2022-12-13 19:05:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:05:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 19:05:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 846 transitions. [2022-12-13 19:05:37,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4895833333333333 [2022-12-13 19:05:37,992 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 846 transitions. [2022-12-13 19:05:37,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 846 transitions. [2022-12-13 19:05:37,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:05:37,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 846 transitions. [2022-12-13 19:05:37,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.75) internal successors, (846), 8 states have internal predecessors, (846), 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 19:05:37,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 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 19:05:37,996 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 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 19:05:37,996 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 317 flow. Second operand 8 states and 846 transitions. [2022-12-13 19:05:37,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 100 transitions, 839 flow [2022-12-13 19:05:37,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 100 transitions, 790 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-13 19:05:37,999 INFO L231 Difference]: Finished difference. Result has 62 places, 49 transitions, 361 flow [2022-12-13 19:05:38,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=361, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2022-12-13 19:05:38,000 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 28 predicate places. [2022-12-13 19:05:38,000 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 361 flow [2022-12-13 19:05:38,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 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 19:05:38,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:05:38,000 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:38,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:05:38,001 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 19:05:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:38,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1974424198, now seen corresponding path program 3 times [2022-12-13 19:05:38,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:38,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031132801] [2022-12-13 19:05:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:38,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:05:38,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:05:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:05:38,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:05:38,089 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:05:38,089 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-13 19:05:38,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-13 19:05:38,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-13 19:05:38,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-13 19:05:38,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-13 19:05:38,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-13 19:05:38,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 19:05:38,091 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:38,096 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:05:38,096 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:05:38,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:05:38 BasicIcfg [2022-12-13 19:05:38,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:05:38,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:05:38,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:05:38,132 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:05:38,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:05:29" (3/4) ... [2022-12-13 19:05:38,133 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 19:05:38,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:05:38,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:05:38,176 INFO L158 Benchmark]: Toolchain (without parser) took 9988.01ms. Allocated memory was 119.5MB in the beginning and 283.1MB in the end (delta: 163.6MB). Free memory was 83.5MB in the beginning and 158.9MB in the end (delta: -75.3MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,177 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:05:38,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.56ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 57.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.90ms. Allocated memory is still 119.5MB. Free memory was 57.0MB in the beginning and 54.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,177 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,178 INFO L158 Benchmark]: RCFGBuilder took 509.53ms. Allocated memory is still 119.5MB. Free memory was 52.5MB in the beginning and 61.9MB in the end (delta: -9.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,178 INFO L158 Benchmark]: TraceAbstraction took 9024.47ms. Allocated memory was 119.5MB in the beginning and 283.1MB in the end (delta: 163.6MB). Free memory was 60.9MB in the beginning and 169.4MB in the end (delta: -108.5MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,178 INFO L158 Benchmark]: Witness Printer took 44.25ms. Allocated memory is still 283.1MB. Free memory was 169.4MB in the beginning and 158.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 19:05:38,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.56ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 57.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.90ms. Allocated memory is still 119.5MB. Free memory was 57.0MB in the beginning and 54.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.53ms. Allocated memory is still 119.5MB. Free memory was 52.5MB in the beginning and 61.9MB in the end (delta: -9.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9024.47ms. Allocated memory was 119.5MB in the beginning and 283.1MB in the end (delta: 163.6MB). Free memory was 60.9MB in the beginning and 169.4MB in the end (delta: -108.5MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 44.25ms. Allocated memory is still 283.1MB. Free memory was 169.4MB in the beginning and 158.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 121 PlacesBefore, 34 PlacesAfterwards, 113 TransitionsBefore, 24 TransitionsAfterwards, 2192 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 100 TotalNumberOfCompositions, 5981 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3073, independent: 2880, independent conditional: 0, independent unconditional: 2880, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1176, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3073, independent: 1745, independent conditional: 0, independent unconditional: 1745, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 1176, unknown conditional: 0, unknown unconditional: 1176] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L721] 0 int z = 0; [L722] 0 _Bool z$flush_delayed; [L723] 0 int z$mem_tmp; [L724] 0 _Bool z$r_buff0_thd0; [L725] 0 _Bool z$r_buff0_thd1; [L726] 0 _Bool z$r_buff0_thd2; [L727] 0 _Bool z$r_buff0_thd3; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L730] 0 _Bool z$r_buff1_thd2; [L731] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L836] 0 pthread_t t745; [L837] FCALL, FORK 0 pthread_create(&t745, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t745, ((void *)0), P0, ((void *)0))=-2, t745={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t746; [L839] FCALL, FORK 0 pthread_create(&t746, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t746, ((void *)0), P1, ((void *)0))=-1, t745={5:0}, t746={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t747; [L841] FCALL, FORK 0 pthread_create(&t747, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t747, ((void *)0), P2, ((void *)0))=0, t745={5:0}, t746={6:0}, t747={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L743] 1 z$w_buff1 = z$w_buff0 [L744] 1 z$w_buff0 = 1 [L745] 1 z$w_buff1_used = z$w_buff0_used [L746] 1 z$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L748] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L749] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L750] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L751] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L752] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L795] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L798] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L799] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L800] 3 z$flush_delayed = weak$$choice2 [L801] 3 z$mem_tmp = z [L802] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L803] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L804] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L805] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L806] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L807] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L808] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L809] 3 __unbuffered_p2_EBX = z [L810] 3 z = z$flush_delayed ? z$mem_tmp : z [L811] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L758] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L759] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L760] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L761] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L762] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L778] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L779] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L780] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L781] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L782] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L814] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L815] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L816] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L817] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L818] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L821] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L823] 3 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L845] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L845] RET 0 assume_abort_if_not(main$tmp_guard0) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t745={5:0}, t746={6:0}, t747={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L854] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 144 locations, 6 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: 8.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 478 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 928 IncrementalHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 34 mSDtfsCounter, 928 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=10, InterpolantAutomatonStates: 47, 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, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:05:38,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac75b97-d565-4c7a-ad51-85174a1da910/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE